rancidify

verb

Etymology: Etymology tree Latin ranciduslbor. English rancid Latin -i- Proto-Indo-European *dʰeh₁-der. Proto-Italic *-fakāō Latin -ficō Latin -ificāreder. Old French -ifierbor. Middle English -ifien English -ify English rancidify From rancid + -ify.

1. To make or become rancid.