amputate (v.)

1630s, "to cut off a limb," originally in English both of plants and persons; a back-formation from amputation or else from Latin amputatus, past participle of amputare "to cut off, lop off; cut around, to prune," from am(bi)- "around" (from PIE root *ambhi- "around") + putare "to prune, trim" (from PIE root *pau- (2) "to cut, strike, stamp"). Related: Amputated; amputating.