climbing herb, late 14c., from Old North French veche, variant of Old French vece, from Latin vicia "vetch," which perhaps is related to vincire "to bind" (compare second element of periwinkle (n.1)), or from PIE root *weik- (2) "to bend, to wind." Dutch wikke, German Wicke are loan-words from Latin vicia.
also *weig-, Proto-Indo-European root meaning "to bend, to wind."
It forms all or part of: vetch; vicar; vicarious; vice- "deputy, assistant, substitute;" viceregent; vice versa; vicissitude; weak; weakfish; week; wicker; wicket; witch hazel; wych.
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit visti "changing, changeable;" Old English wac "weak, pliant, soft," wician "to give way, yield," wice "wych elm," Old Norse vikja "to bend, turn," Swedish viker "willow twig, wand," German wechsel "change."
sort of vetch cultivated in the East Indies, 1690s, from Hindi dal "split pulse," from Sanskrit dala, from dal "to split."
"kind of fodder plant, vetch," c. 1300, perhaps cognate with or from Middle Dutch tarwe "wheat," from a Germanic source perhaps related to Breton draok, Welsh drewg "darnel," Sanskrit durva "a kind of millet grass," Greek darata, daratos "bread," Lithuanian dirva "a wheat-field." Used in 2nd Wyclif version (1388) of Matthew xiii.25 to render Greek zizania as a weed among corn (earlier darnel and cockle had been used in this place); hence figurative use for "something noxious sown among something good" (1711).