~ 1
■ suffix (forming nouns) denoting a place for a particular function: dormitory.
Derivatives
-orial suffix .
Origin
from L. -oria , -orium , sometimes via Anglo-Norman Fr. -orie , OFr. -oire .
————————
~ 2
■ suffix forming adjectives (and occasionally nouns) relating to or involving a verbal action: compulsory.
Origin
from L. -orius , sometimes via Anglo-Norman Fr. -ori(e) .