FromLatin -um ( neuter singular morphological suffix ) , based on Latin terms for metals such asferrum ( “ iron ” ) .
-ium
( chemistry ) Used to form the names of metalelements , after the style of early-named elements, as well as theisotopes ofhydrogen . ( chemistry ) Used to form thetemporary systematic element name of ametallic ornonmetallic element which ispostulated to exist, or which has been newlysynthesized and has not yet beenassigned apermanent name. ( chemistry ) Used to form the name ofpolyatomic cations . ( by extension, humorous ) Appended to common words to create scientific-sounding or humorous-sounding fictional substance names. 1997 Official Microsoft Internet Explorer 4 book , page34 :According to the FAQ, a site's coolness can be attributed to a trace element called coolium .
2007 Wishing Well , appendix, page ii:Stupidium : Exposure to this Element can cause very silly behavior.
2009 Quickies , page91 :We're at the North Pole, aren't we? Let's just call the new element Santa Clausium !
Reanalysis from multipleLatin orNew Latin compounds suffixed with-ium parasynthetic compounds .
-ium (plural -iums irregular plural -ia
Used to form the name of anaggregation ormass of something, such asbiological tissue Forms the name of biologicalstructures and parts. Reanalysis ofLatin words suffixed with-tōrium -ārium -ium
-ium (plural -iums irregular plual -ia
Used to indicate the setting where a given activity is carried out Reanalysis ofammonium -onium
-ium
( pharmacology ) Used to form names ofquaternary ammonium compounds used asneuromuscular blocking agents ,cholinergic agents ,anticholinergic agents,antibacterials /antiseptics , or other agents .Alternative form:-onium -ium
Used to formnouns (loanwords ) ofGreek orLatin origin;-ium akvarium ,evangelium ,kriterium ,kollegium ,laboratorium ,medium ,privilegium ,sanatorium ,studium aquarium, gospel, criterion, college, laboratory, medium, privilege, sanatorium, study ( chemistry ) Used to formnouns denotingchemical compounds , especiallyelements ;-ium barium ,aluminium ,beryllium ,ammonium barium, aluminium, beryllium, ammonium ( botany ) Used to formnouns denotingplant designations;-ium geranium ,kaprifolium caprifolium, geranium -ium
-ium From-ius ( suffix forming adjectives ) : as a nominal suffix (Suffix 1), a substantivisation of its neuter forms; as an adjectival suffix (Suffix 2), regularly declined forms. CompareAncient Greek -ιον ( -ion ) ,Proto-Slavic *-ьje
-ium n genitive -iī or -ī second declension
Suffix used to form abstract nouns, sometimes denoting offices and groups. May no longer be productive. auspex -ium → auspicium dēsīderō -ium → dēsīderium castellum ( “ castle ” ) + -ium → castilium ( “ fortified city ” ) ( New Latin ) Suffix appended to form names of chemical elements. Second-declension noun (neuter).
1 Found in older Latin (until the Augustan Age).
See the etymology of the correspondinglemma form.
-ium
inflection of-ius nominative / accusative / vocative neuter singular accusative masculine singular See the etymology of the correspondinglemma form.
-ium
genitive plural of-s FromLatin -ium ( forms names of chemical elements ) , from-ius ( forms adjectives ) , fromOld Latin -iōs Proto-Italic *-jos ( forms comparative adverbs ) , fromProto-Indo-European *-yōs ~ *-is- ( forms adjectives ) .
-ium
Used to formnouns (loanwords ) ofGreek orLatin origin;-ium akvarium, evangelium, kriterium, kollegium, laboratorium, medium, privilegium, sanatorium, studium ―aquarium, gospel, criterion, college, laboratory, medium, privilege, sanatorium, study ( chemistry ) Used to formnouns denotingchemical compounds , especiallyelements ;-ium barium, aluminium, beryllium, ammonium ―barium, aluminium, beryllium, ammonium ( botany ) Used to formnouns denotingplant designations;-ium geranium ―geranium ( geology ) Used to formnouns denotinggeological designations;-ium alluvium, kambrium, ordovicium ―alluvium, cambrium, ordovicium “-ium” inDet Norske Akademis ordbok (NAOB ).
