oxyoudaoicibaDictYouDict[ox 词源字典]
ox: [OE] Ox is an ancient word, traceable back to a prehistoric Indo-European *uksín-. This also produced Welsh ych ‘bull’, Irish oss ‘stag’, and Sanskrit ukshán ‘bull’, and it has been speculated that there may be some connection with Sanskrit uks- ‘emit semen’ and Greek hugrós ‘moist’, as if *uksín- denoted etymologically ‘male animal’.

If this was so, the ‘seed-bearing’ function had clearly been lost sight of by the time it had evolved to Germanic *okhson, which was reserved for a ‘castrated bull’. Ox’s modern Germanic relatives are German ochse (taken over by English in the compound aurochs ‘extinct wild ox’ [18], which etymologically means ‘original or primeval ox’), Dutch os, Swedish oxe, and Danish okse.
=> aurochs[ox etymology, ox origin, 英语词源]
ox (n.)youdaoicibaDictYouDict
Old English oxa "ox" (plural oxan), from Proto-Germanic *ukhson (cognates: Old Norse oxi, Old Frisian oxa, Middle Dutch osse, Old Saxon, Old High German ohso, German Ochse, Gothic auhsa), from PIE *uks-en- "male animal," (cognates: Welsh ych "ox," Middle Irish oss "stag," Sanskrit uksa, Avestan uxshan- "ox, bull"), said to be from root *uks- "to sprinkle," related to *ugw- "wet, moist." The animal word, then, is literally "besprinkler."