Morpheme
-ulum
Type
suffix
Denotation
Latin singular neuter instrumental suffix (plural -ula)
Etymology
(1) Latin -ulum, from -culum, from -culus, from rebracketing of -cus + -ulus, from -lus; (2) Latin -ulum, from -ulus, from -lus
Evidence
capitulum, cingulum, coagulum, frenulum, jugulum, pendulum, pinaculum, Pratulum, speculum, spiculum, vinculum