thiefyoudaoicibaDictYouDict[thief 词源字典]
thief: [OE] Thief goes back to a prehistoric Germanic *theubaz, which also produced German dieb, Dutch dief, Swedish tjuf, and Danish tyv. It is not clear where this came from, although it might be related to Lithuanian tupeti ‘cower, squat’ and Latvian tupt ‘squat’, in which case it would denote etymologically ‘crouching, furtive person’. From *theubaz was derived *thiūbithō, ancestor of modern English theft.
=> theft[thief etymology, thief origin, 英语词源]
thief (n.)youdaoicibaDictYouDict
Old English þeof "thief, robber," from Proto-Germanic *theubaz (cognates: Old Frisian thiaf, Old Saxon thiof, Middle Dutch and Dutch dief, Old High German diob, German dieb, Old Norse þiofr, Gothic þiufs), of uncertain origin.