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mid-15c., from Middle French putréfier, from Latin putrefacere "to make rotten," from putrere (see putrid) + facere (see factitious). Related: Putrefied; putrefying.
putrefy pu·tre·fy (pyōō'trə-fī')v. pu·tre·fied, pu·tre·fy·ing, pu·tre·fies
To become decayed or cause to decay and have a foul odor.
To make or become gangrenous.