- (chemistry) -ene (forms the names of alkenes)
- -ean (forms demonyms)
-eno m (feminine -ena)
- (as an adjective) Coming from, related to, or like.
- (as a noun) One from, belonging to, relating to, or like.
- (organic chemistry) -ene (forms names of alkenes)
Used to form adjectives from nouns, but the adjectives in turn often come to be used as nouns.