Theaugment, also called thepre-prefix or justinitial vowel, is amorpheme that is prefixed to thenoun class prefix of nouns in certainBantu languages.
The augment originates in theProto-Bantu pronominal prefix, which is usually identical to the subject prefix of verbs.[1] In some contemporary languages, such asMasaba, this shape has remained more or less unaltered. In others, the augment has been reduced to a simple vowel, often the vowel of the following noun class prefix (e.g. inZuluumu-,ama-), or a lowered variety (Lugandaomu-). Where the noun class prefix normally has a low tone, the augment has a high tone.
The following table gives an overview of the shape of the augment in various languages:[2]
| Masaba | Luganda | Zulu | |
|---|---|---|---|
| Class 1 | umu- | omu- | umu- |
| Class 2 | baba- | aba- | aba- |
| Class 3 | gumu- | omu- | umu- |
| Class 4 | gimi- | emi- | imi- |
| Class 5 | lisi- | eli- | i(li)- |
| Class 6 | gama- | ama- | ama- |
| Class 7 | kiki- | eki- | isi- |
| Class 8 | bibi- | ebi- | izi- |
| Class 9 | in- | en- | in- |
| Class 10 | zin- | en- | izin- |
| Class 11 | lulu- | olu- | u(lu)- |
| Class 12 | kaka- | aka- | — |
| Class 13 | — | otu- | — |
| Class 14 | bubu- | obu- | ubu- |
| Class 15 | kuku- | oku- | uku- |
The TekelaNguni languages have the augment only in some noun classes, but with a relatively predictable distribution:[3]
The augment appears to have neither only one function in the languages that have it or even the same function in all languages. In earlier works, it was often compared to a definite article, but its range of use is wider than that.[2]
In Ganda, the augment may indicate definiteness, specificity or focus, but its presence or absence may also depend on syntactic factors.[2] It is present in simple declarative sentences:
omulimi
farmer
omunene
fat
omukaddomu
old
one
agenda
goes
omulimiomuneneomukaddomu {} agenda
farmer fat old one goes
One old, fat farmer is going.
But it is absent when a noun follows a negative verb:
tetulaba
we don't see
mulimi
farmer
munene
fat
tetulaba mulimi munene
{we don't see} farmer fat
We don't see a fat farmer.
In Zulu, the augment is normally present, but it is dropped in cases like the following: