decollate (1)youdaoicibaDictYouDict[decollate 词源字典]
"Behead (someone)", Late Middle English: from Latin decollat- 'beheaded', from the verb decollare, from de- (expressing removal) + collum 'neck'.[decollate etymology, decollate origin, 英语词源]
decollate (2)youdaoicibaDictYouDict
"Mechanically separate sheets of paper into different piles", 1960s: from de- 'away from' + collate.