buggery (n.)youdaoicibaDictYouDict[buggery 词源字典]
mid-14c., "heresy," from Old French bougrerie, from bougre "heretic" (see bugger (n.)). Later "unnatural intercourse" with man or beast, "carnalis copula contra Naturam, & hoc vel per confusionem Specierum;" from bugger (n.) + -y (4).[buggery etymology, buggery origin, 英语词源]