-ulum

== Latin == === Etymology 1 === Functions as a phonologically conditioned alternative form (allomorph) of the suffix -culum, from Proto-Indo-European *-tlom. It possibly developed from a phonological rule that deleted the initial stop of the suffix when it came after a stop, or from simplification of geminates (e.g. *spek-tlo- > *spek-klo-). However, Sen 2015 argues that instrumental ending -ulum is derived from the neuter of the etymologically distinct suffix -ulus (found in some agent nouns, such as figulus (“potter”)) from Proto-Italic *-elos. Compare the feminine variant -ula. ==== Pronunciation ==== (Classical Latin) IPA(key): [ʊ.ɫũː] (modern Italianate Ecclesiastical) IPA(key): [u.lum] (stressed on the antepenult) ==== Suffix ==== -ulum n (genitive -ulī); second declension Used to form a noun of instrument or means from a verb. ‎amicio + ‎-ulum → ‎amiculum ‎specio + ‎-ulum → ‎speculum ‎cingo + ‎-ulum → ‎cingulum ===== Declension ===== Second-declension noun (neuter). ===== Derived terms ===== === Etymology 2 === See the etymology of the corresponding lemma form. ==== Suffix ==== -ulum inflection of -ulus: nominative/accusative/vocative neuter singular accusative masculine singular === References === === Further reading === Clackson, James, Indo-European Word Formation: Proceedings from the International Conference, 2002.