Morpheme
-ulum
Type
suffix
Denotation
instrument suffix (plural -ula)
Etymology
Latin -ulum, from -culum
Evidence
cingulum, coagulum, pendulum, speculum, vinculum
See Also
-ac(u)le, -c(u)le, -cula, -culae, -culum, -culus, -culi, -ula, -ulae, -(u)le, -unculi, -unculus