The story
- Proto-Indo-European · derived from*pl̥h₁nós“full”
- Latin · derived fromplēnitātem
- Old French · derived fromplenté
- Anglo-Norman · derived fromplenté
- Middle English · inherited fromplentie
- English todayplenty
From Anglo-Norman plent(é) + -y, from Middle English plentie, plentee, plente, from Anglo-Norman plenté, from Old French plenté, from Latin plēnitātem, accusative of plēnitās (“fullness”), from plenus (“complete, full”), from Proto-Indo-European *pl̥h₁nós (“full”), from which English full also comes, via Proto-Germanic. Related to the Latin derivatives replenish, plenary, complete, deplete, replete.
Words from the same roots
Etymology from Wiktionary, CC BY-SA 4.0.