Middle English word impoverishen comes from Old French en- (En- (in; into). En- (intensifier).), Old French povre (Poor (lacking resources).)

Detailed word origin of impoverishen

Dictionary entry	Language	Definition
en-	Old French (fro)	En- (in; into). En- (intensifier).
povre	Old French (fro)	Poor (lacking resources).
empoverir	Old French (fro)
empoverishen	Middle English (enm)

Words with the same origin as impoverishen