Is it ensure, insure, or assure?
"to trim by cutting close," c.1300, from Old French parer "arrange, prepare; trim, adorn," and directly from Latin parare "make ready, furnish, provide, arrange, order," related to parere "produce, bring forth, give birth to," from PIE root *pere- "produce, procure, bring forward, bring forth," and derived words in diverse senses (cf. Lithuanian pariu "to brood," Greek poris "calf, bull," Old High German farro, German Farre "bullock," Old English fearr "bull," Sanskrit prthukah "child, calf, young of an animal," Czech spratek "brat, urchin, premature calf"). Generalized meaning "to reduce something little by little" is from 1520s. Related: Pared; paring.
Paré Pa·ré (pä-rā'), Ambroise. 1517?-1590.
French surgeon who made numerous improvements to operating methods, including the ligature of arteries rather than cauterization.