Iatmul is the language of theIatmul people, spoken around theSepik River in theEast Sepik Province, northernPapua New Guinea.^[2] The Iatmul, however, do not refer to their language by the term Iatmul, but call itgepmakudi ("village language", from gepma = "village" and kudi "speech"; pronounced as[ŋɡɛpmaɡundi]).

There are about 8,400 Iatmul traditionally organized in villages, whereas a total amount of 46,000 speakers is estimated.^[3] The inhabitants of the villages aretrilingual, being fluent withTok Pisin, good with Iatmul and having some knowledge of English. Tok Pisin is also the first language of the youngest children, despite efforts to reverse this trend.^[4]

An extensive grammar of Iatmul has been recently written byGerd Jendraschek as a postdoctoral thesis.^[2]

Iatmul is part of theNdu language family, which consists of at least six languages in whichndu is the word for 'man'. Together with Manambu it is the southernmost language of the Ndu family, spoken along the Sepik River.^[5] Iatmul is perhaps the best known Ndu language of them all.^[6]

Iatmul is a moderatelyagglutinative and nearlyisolating language. Flexion is predominantly suffixed and very regular, whereas thephonological processes are the most complex ones within the language. Stems often change their form while multiple-morpheme structures can become so coalescent that they are difficult to segment.^[7]

Iatmul has masculine and feminine gender marking as well as singular, dual and plural numbers.^[8]Nouns andverbs are the only two major classes in Iatmul with only little derivation across them.^[8] Also, there is not a strong distinction between modifiers and nouns as manyroots can be used as nouns, adjectives or adverbs.^[9] Smaller word classes includepersonal pronouns,demonstratives,postpositions,quantifiers,interrogatives as well asproclauses (yes, no), while there are no clause-linkingconjunctions.^[10]

Thephonological system of Iatmul is a matter of controversy among scholars. There is no consensus about how manyvowels Iatmul has and about which realisations are to be considered asphonemes orallophones. There were attempts of analysing the language as consisting of only 1-3 vowels by Staalsen (1966) and Laycock (1991).^[11] Jendraschek (2012) in contrast describes 12 phonemicmonophthongs and 7 phonemicdiphthongs.^[12]

In Iatmul, the contrast between the fortis, lenis, and prenasalized stops exists only intervocalically. The fully oral stops can be voiced (to/b/,/d/,/g/), and as such they have voiced allophones in certain contexts. The latter also tend to be more open than the fortis stops, which means that they can become taps, fricatives, or approximants in post-sonorant position. Prenasalized stops are inherently voiced. As such, the distinctive feature between the fortis and oral series is not voicing, but rather voiceability.^[7]

The canonicalsyllable structure of Iatmul is C(A)V(C), where the firstconsonant can be any consonant other than the "geminates". Only approximants/liquids can be in the second onset position. Possiblecodas are only[p],[t],[k],[m],[n], and[ɲ] (the lenis plosives and nasals). Most words begin with the nasal consonants[m],[n] or the plosive consonants[p],[k].^[16] Excluded from this rule are about 5% of the words in Iatmul, which begin with the vowels[a] or[a:].^[17]

A very common phenomenon in Iatmul isregressive assimilation.^[16]

Assimilation can be blocked to avoid ambiguity. Whereas (2a) is ambiguous due to assimilation ofbâk tobap, example (2b) is not ambiguous as assimilation was blocked in favour of a clear meaning.^[18]

Elision can also be encountered very frequently. In the following example, both vowel fusion and onset elision are operating at the same time, making the meaning of the final form hard to recognize.^[12]

Epenthesis can be observed when for example focus is marked with the suffix-a:

Reduction mostly happens quantitatively, so that the vowels are shorted in their length. Qualitative reduction happens on a rare occasion and mainly occurs during monophthongization.^[20]

In Iatmul, words are not differentiated viapitch oraccentuation. The meanings of words are not autonomous, but influenced by factors like vocal length, syllable structure and speed ofenunciation. The following rules are the most important ones in descending order:^[21]

• Long vowels are stressed (ti’baadi’[tɨˈmbaːndɨ], 'he can stay')
• CVC syllables are stressed (ti’kali’ka[tɨˈɡaɾɡa], 'meanwhile')
• Word-initial syllables are stressed.^[21]

Incompounds, these rules can be randomly applied to the first or to the second word.^[21] As diphthongs are not stressed, there are no long monophthongized diphthongs.^[22]

A phonological utterance ends with fallingintonation. Simple sentences are marked via pauses. Complex sentences end with falling intonation. Questions are marked via variations in pitch.Focus is marked by initial high intonation and a subsequent fall of the pitch.^[23]

Iatmul is a moderatelyagglutinative language in whichsuffixes are dominating.^[7] Therefore, much information is being expressedmorphologically instead ofsyntactically, which is true especially for the category of the verb. Information regarding actions like the direction, the manner or temporal relations are expressed viaderivation of the verbs. There are manyaffixes specifying the manner in which an action is performed, like the means or the amount of control over the action.^[24]

Temporal marking exists inpresent tense andpast tense, but not in the future tense. The marker for the present tense is-ka and in some cases the allomorph-a. The past tense is unmarked. Thus, some tenses can be distinguished only by the length of a single vowel.^[26]

The expression of future is covered by theirrealis mood with the allomorphs -kiya,-ikiya (after roots ending with -a) and it' short form -ika occurring in fast speech. Besides future reference, the irrealis expresses possibility and permission and can be used inconditional constructions.^[27]

Theimperfective aspect marker-ti'~li' occurs most often with the present tense. Therefore, in some constructions in which present cannot be marked (e.g. nominalized clauses), the imperfective expresses present time reference. Thus, it' semantics is about to shift from aspect to tense.^[28]

Other aspects in Iatmul are

• Hortative marked with -kak, -li, -lu
• Optative marked with -ba and -ka
• Apprehensive marked with -ka
• Imperative, which is built using the bare stem or additionally by the suffix -li'.^[29]

A special category in Iatmul areevent-specifier-suffixes. Temporal relations are expressed with

• -jibu: event takes place during the whole night until sunrise
• -pwali: expresses that the event is done continuously
• -ki’va: expresses that something else is done in the middle of one action (interruption)
• -si’bla: expresses that an event occurs as the first one before any other events (anteriority)^[30]

Other event-specifiers express the extent of the action (complete, incomplete, all of its parts) or thefrustrative (attempt, failure).^[32]

In Iatmul, at least three cases with overlapping functions are assumed. Jendraschek argues, that it is not possible to define basic meanings for the cases, as the case markers often arepolysemous.^[33] In general, case marking does not depend on the head but also on pragmatic circumstances and especially semantic properties of the controlling verb and its dependent noun. Thus, there is no strict division into structural and semantic cases in Iatmul.^[34]

Case marking has the whole noun phrase in its scope so that they are placed at the end of the phrase. This is also the case when the end of the word is not the head noun.^[33]

Subjects as well as copula subjects and copula complements are always zero-marked with respect to their case. The direct object remains unmarked if it is low inanimacy ordefiniteness.^[35] Goals are not always marked with an overt case-marker, especially when they are inanimate.^[36]

The marker for the so-calleddative is-kak with the allomorph-kat.^[37] As pronouns and proper nouns are always definite, they are marked with dativ case when they are used as transitive objects.^[38] When definite nouns referring to humans are transitive objects, the marker is preferred but not obligatory. The same is the case with non-human animates (like animals), whereas here the marking more likely indicates specificity of the object ('the dog' or 'one dog'):^[39]

Whether a transitive objects has to be marked with-kak is also depending on the meaning of the predicate. Dead animals are not perceived the same way as animate, specific animals, so that marking is not employed in sentences where someone eats an animal. On the other hand, when an animal eats a human, marking is employed.[40]

Beside transitive objects, other semantic roles like recipient, addressee, theme and reason can be marked with the dative marker.^[41] Animate goals are also marked with the dative case.^[42]

The so-calledlocative is marked with-(na)ba.^[43] Its main function is to mark locations, in some contexts including time expressions.^[44] Regarding transitive objects, its functions overlap with those of the dative marker-kak, so that in some context it is assumed that there is no difference in meaning between both markers. Still, usually it marks transitive objects with non-human referents including those who do not accept-kak.^[43]

Besides marking of location and transitive objects, the locative case can also mark themes, manner, material, instruments, goals, sources and animate recipients.^[46] In case of the animate recipients, -ba can only be used if the recipient is perceived more as a location where something is left instead of the finial recipient.^[47]

• Allative marker-ak and allomorph -alak: marks goal in the sense of purposes of activities instead of locations as well as recipients.^[48]
• Comitative marker-(a)na(la) and -akwi or (-)okwi: It is unclear according to which rules these allomorphs are distributed.^[49]
• Vocative marker -o: The only function of the vocative is to signal that a noun phrase refers to the addressee. It is not used obligatorily but rather when the name has to be repeated in case the addressee did not hear the first call.^[50]

In Iatmul,gender is not marked on the noun but on itsmodifiers (demonstratives) instead as well as viasubject-verb-agreement. Often this is also true for number-marking, where only some nouns can be marked with a plural suffix.^[51]

Referents without natural gender like inanimate entities are marked with respect to gender depending on their size. Thus, bigger referents are marked as masculine whereas smaller referents are marked as feminine. From both gender markers, masculine is perceived as the unmarked one and thus chosen if no characterisation is intended.^[51]

However, there are some referents in Iatmul without natural gender but still with fixed grammatical gender. Among them arenya 'sun', which is masculine, whereasbap 'moon' is feminine. Also, some animal species have specific gender regardless of their biological gender, likekaami 'fish' (masculine). Some nouns can have both genders interchangeably without a difference in meaning asdi'mai 'season'.^[52]

Iatmul has singular, dual and pluralnumber.^[8] As it is with gender, number usually is not marked on the noun. Instead, number can be marked on thedeterminers ormodifiers of the noun as well as viasubject-verb-agreement.^[53] Plurality can also be marked twice.^[54]

Dual or plural marking on the verb indicates the number of the subject referent.^[55] However, this is only true for human referents. Non-human referents are always marked singular on the verb as they are not perceived as individuals.^[56]

There are some exceptional cases in which nouns can employ plural marking. Kinship terms likewalaga ‘ancestor’,nyagei 'sister' orta’kwa 'wife' can be plural marked. But ifta’kwa is used in the meaning of 'woman', it cannot be suffixed with a plural marker as it does not employ a relational meaning.^[53]

The modifiers of a kinship term can be plural-marked also when the kinship term is already plural-marked.^[58]

It is also possible toreduplicate nouns. In this case, they do not convey the usual plural meaning, but rather a distributive one referring to the group as a whole, meaning ‘every’ instead of 'more than one'.^[57] Some reduplicated nouns additionally employ adverbial meaning, likekava ‘place’ askava kava 'everywhere' andjibula 'day' asjibula jibula 'all the time'.^[59] When adjectives are reduplicated, they may be understood as plural-marked or as employing an elative meaning (good -> very good) depending on the context. When the genitive suffix -na is reduplicated, it can express the plurality of the possessee.^[58]

The plural suffix -du which is used on kinship terms can be used on proper names to express ‘person together with people related to this person’ (associative plural). Those related people can be his kin, people living in the same house or friends of the referent.^[59]

Counting in Iatmul is accomplished in mixture of aquinary,decimal andvigesimal system.^[60]Cardinal numerals generally follow the noun. In this case, adjectives are placed before the noun. If numerals close thenoun phrase, they carry the case-markers.^[61]

• The number 1 iski'ta
• The number 5 is 'one hand',taba-nak (fromta'ba 'hand' andnak '(an)other (one)').
• The numbers 6 to 9 are counted elliptically as 'plus one',si'la-ki'ta (fromsi'la 'plus')
• The number 10 is 'two hands',taba-vli (vli being the short form ofvi'li'li'k 'two').
• The number 15 is not three hands 'but two hands plus one hand',taba-vli kyeli taba-nak
• The number 20 is 'one whole man',dumi-ki'ta (fromdu 'man' andmi 'tree', referring to the number of all fingers and toes of a human)
• The number 30 is 'one whole man plus two hands',dumi-ki’ta kyeli taba-vli
• The number 100 is 'five whole men',dumi taba-nak.^[60]

Ordinal numbers are built by addingwan (probably fromwa 'say') to cardinal numerals.^[61]

Most Papuan languages incorporated the counting system of Tok Pisin or adopted the English counting system, which are perceived as shorter and more transparent. Due to the more and more frequent use of other counting systems, many speakers of Iatmul cannot count correctly beyond 'twenty' in their own language.^[62]

There is nopassive voice in Iatmul.^[24] The canonical sentence structure is SOV: Adverb - Subject - Adjunct - Object - Verb^[63]

Yes–no questions are not expressed syntactically but viaintonation.^[63]

The expression ofnegation is accomplished by different morphological structures which often are etymologically unrelated.^[64]

Verbs are negated by placing theparticleana before the inflected verb. In case of non-verbal predicates or predicatively used adjectives,ana is placed in front of the pronominal subject marker.^[64]

Independent clauses, negation on the predicate is not possible. Therefore, negation is expressed by a periphrastic construction in which the suffix -lapman 'without' is attached to the predicate and combined with the auxiliaryyi 'go'.^[65]

To deny existence, theproclauseka'i is used.^[66]

Ke, the reduced form ofka'i, is used together with a non-finite or a subordinate form of the verb to form theprohibitive.^[67]

For theirrealis, the negatorwana is used which cannot be combined withrealis forms.^[68]

Theoptative on the other hand is negated by the verbal suffix -la.^[68]

One of the two types ofsubordinate clauses in Iatmul are nominalised clauses, which are used like attributive, adverbial or complement clauses.^[70] There are rare cases of headless relative clauses, where the predicate of the relative clause becomes the head.^[71] Usually this is avoided by preferring a general noun likedu 'man' as a head.^[72]

When the relative clause has a subject which is not co-referential with the head noun of the matrix clause, then the verb of the relative clause expresses this with a pronominal subject marker on the subordinate verb.^[73]

It is important to note that some relative clauses do not have a common argument in the matrix clause so that the relation between the head noun and the relative clause becomes a matter of semantics or pragmatics rather than syntax.^[74]

To express conditional or temporal relations between clauses, the suffix sequence-a-n 'SN-NR' is used. In conditional clauses, there is a distinction only between irrealis (-ay-a-n) and realis (-a-n).^[75] Thus, the tense reference of the realis can be clarified only via the following clause.^[76] The verb within the relative clause can further be marked with the locative to emphasise the localisation in time.^[75]

The second type of subordinate clauses in Iatmul are realised byswitch-reference and allow for clause chains. With switch-reference markers on a verb it is possible to express whether the subject of one verb is also the subject of another verb. Thus, it is possible to keep track of the subjects within clause chains consisting of several subordinate clauses. Switch-reference is a special feature of the syntax of Iatmul.^[77]

If the subject of both clauses is the same, person is marked once and a non-finite verb form is mandatory in the subordinate clause. If the subjects are different, it is indicated by person-marking in both clauses and by the absence of tense-marking and non-final intonation.^[78] In tenseless clauses, semantic relations are expressed in same-subject and different-subject clauses by marking the dependent verb in the following way:^[79]

It is important to note that -ka 'DEP' is unmarked and thus can also cover the other two relations.[79]

Switch-reference clauses can be used to chronologically order the narrated event or to express temporal overlap, manner of the action or causality.^[80]

A phenomenon typical for Papuan languages istail-head linkage. It is the repetition of the last part of the sentence in the beginning of a new sentence. It frequently occurs together with switch-reference and is used to structure communicated information.^[81]

In aneutral sentence, the subject and the non-referential object are unmarked with respect toinformation structure.^[83]

When thesubject is focused, thefocus marker-a (masculine,-ak for feminine) marks the masculine subject. The verb in contrary misses markers for person and grammatical gender and is marked with the focus marker-a instead. Even though both focus markers have the same form, their origin is different and they have different allomorphs. The following sentence is the answer to the question 'Who cooked rice?'.^[83]

When anon-subject is focused, the verb is marked with respect to person and grammatical gender of the subject in addition to focus. The focus constituent is focus-marked and precedes the verb, whereas non-focused constituents can follow the verb (subject as afterthought). The following sentence is the answer to the question 'What did Joachim cook?'.^[84]

In all these cases, the marking of noun and verb indicates that the focus constructions must have emerged from cleft-constructions (hence the alternative glossing in the following examples with 3SG and SR).^[85] Sentences marked with respect to focus generally have a smaller potential for inflection than neutral sentences. Therefore, some grammatical categories (likeoptative,imperative) which are expressed by suffixation can not be realised when the sentence is marked with respect to focus.^[86]

Questions which are asking for the subject or direct object need to be focus-marked, while the answers can be focused or neutral.^[87]

To mark the questions, the allomorphs-na (masc.) and-lak (fem.) are used for focus marking. Inanimate referents are always marked with-na. This can be explained by assuming that the question words used to be marked twice with the demonstrative pronouns-(a)n (masc.) and-(a)t (fem.), which due to phonological processes evolved to the current focus suffixes.^[88]

(6) kada-an > kadan > kadan-an > kadana^[88]

(7) kada-at > kadat > kadat-at > kadalat > kadalak^[88]

If it is not asked for the subject or the direct object, another possibility is a neutral question.^[89]

In negated sentences, focus marking causes extraordinary structures. The negation particleana which is placed before the verb receives a congruency marker. The following examples illustrate this with focus on the subject.^[90]

In sentences, in which the predicate is negated, the negation is carried out periphrastically with-lapman 'without'.^[91]

• Iatmul people
• Ndu languages
• Yimas-Iatmul Pidgin
• Gerd Jendraschek

• Languages of East Sepik Province
• Ndu languages

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