Meaning

noun a tense of verbs used in describing action that is on-going

adjective not perfect; defective or inadequate

adjective wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings

originFrom Middle English imperfit, from Old French imparfit (modern French imparfait), from Latin imperfectus. Spelling modified 15c. to conform Latin etymology. See im- + perfect.

Etymology from Wiktionary, CC BY-SA 3.0