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mid-15c., from Late Latin perpetrationem (nominative perpetratio) "an accomplishing, performing," noun of action from past participle stem of perpetrare "to perform, accomplish" (see perpetrate).
1540s, from Latin perpetratus, past participle of perpetrare "to perform, to accomplish," from per- "completely" + patrare "carry out," originally "bring into existence," from pater "father" (see father (n.)). Earlier in English was perpetren, mid-15c., from Old French perpetrer. Neither good nor bad in Latin, first used in English in statutes, hence its sense of "to perform criminally." Related: Perpetrated; perpetrating.