weiryoudaoicibaDictYouDict[weir 词源字典]
weir: [OE] A weir is etymologically a structure for ‘hindering’ the flow of water. The word’s Old English ancestor was derived from the verb werīan ‘defend, protect’, also ‘hinder’, and hence by extension ‘dam up’, which was distantly related to Sanskrit vr ‘cover’ and vāraya ‘stop, hinder’, and came ultimately from the Indo-European base *wer- ‘cover, shut’.
[weir etymology, weir origin, 英语词源]
weir (n.)youdaoicibaDictYouDict
Old English wer "dam, fence, enclosure," especially one for catching fish (related to werian "dam up"), from Proto-Germanic *wer-jon- (cognates: Old Norse ver, Old Frisian and Middle Dutch were, Dutch weer, Old High German wari, German Wehr "defense, protection," Gothic warjan "to defend, protect"), from PIE *wer- (5) "to cover, shut" (cognates: Sanskrit vatah "enclosure," vrnoti "covers, wraps, shuts;" Lithuanian užveriu "to shut, to close;" Old Persian *pari-varaka "protective;" Latin (op)erire "to cover," (ap)erire "open, uncover" (with ap- "off, away"); Old Church Slavonic vora "sealed, closed," vreti "shut;" Old Irish feronn "field," properly "enclosed land").