From Proto-Germanic*wiþjǭ, *wiþiz(“rope, cord”), from Proto-Indo-European*wīt-, *weyt-(“something twisted, rod, switch, whip”), from Proto-Indo-European*wey-(“to wind, twist, bend, turn”). Cognate with Old Frisian withthe, Middle Dutch wisse (Dutch wis), Old High German wit, withi, Old Norse við, viðja (Swedish vidja). Compare also Ancient Greek ἰτέα(itéa, “willow”) (from (Can this(+) etymology be sourced?)*ϝειτεϝα(weitewa)), Latin vītis(“vine”), Old Irish féith(“fibre”).