yokeyoudaoicibaDictgodict[yoke 词源字典]
yoke: [OE] The etymological ideal underlying yoke is of ‘joining’ – here, of joining two animals together. The word came ultimately from Indo-European *jugom, which also produced Latin jugum ‘yoke’ (source of English conjugal, jugular [16], and subjugate [15]), Welsh iau ‘yoke’, Czech jho ‘yoke’, Sanskrit yugám ‘yoke’, etc.

The prehistoric Germanic descendant of this was *jukam (borrowed into Finnish as juko), which evolved into German joch, Dutch juk, Swedish ok, Danish aag, and English yoke. The Indo-European form itself was derived from the base *jug-, *jeug-, *joug- ‘join’, which also produced Latin jungere ‘join’ (source of English join, junction, etc) and Sanskrit yoga ‘union’ (acquired by English via Hindi as yoga [19], which literally denotes ‘union with the universal spirit’).

=> conjugate, join, jugular, junction, subjugate, yoga[yoke etymology, yoke origin, 英语词源]
yoke (n.)youdaoicibaDictgodict
Old English geoc "contrivance for fastening a pair of draft animals," earlier geoht "pair of draft animals" (especially oxen), from Proto-Germanic *yukam (cognates: Old Saxon juk, Old Norse ok, Danish aag, Middle Dutch joc, Dutch juk, Old High German joh, German joch, Gothic juk "yoke"), from PIE root *yeug- "to join" (see jugular). Figurative sense of "heavy burden, oppression, servitude" was in Old English.
yoke (v.)youdaoicibaDictgodict
Old English geocian "to yoke, join together," from yoke (n.). Related: Yoked; yoking.