-ite2 Also -it.
Forming adjectives, nouns, and verbs.
[Latin -itus, past participle of verbs ending in -ere and -ire.]
Such words have nothing in common except their source. Adjectives include composite, contrite, definite, erudite, exquisite, favourite, finite, opposite, polite, and requisite. Some of these can also be nouns, and a few others are wholly or mainly so: appetite, requisite. Others are verbs: expedite, ignite, unite. Some have lost the final e: circuit, elicit, implicit, solicit.
By no means all words in -ite have this Latin origin. Most short words, such as smite and write, are of Germanic origin; hypocrite and parasite are from Greek; others, such as respite and satellite, come from different Latin sources.