It's that you ask about it. I had already looked it up on Online Etymology:
> link
Online Etymologyas I was wondering about the relation with "to wind"
'That long and winding road that leads etc.' wend "to proceed on," O.E. wendan "to turn, go," from P.Gmc. *wandijanan (cf. O.S. wendian, O.N. venda, O.Fris. wenda, Du. wenden, Ger. wenden, Goth. wandjan "to turn"), causative of O.E. windan "to turn, twist" (see
wind (v.)), from base *wand-, *wend- "turn." Surviving only in to wend one's way, and in hijacked past tense form went.
wind (v.)
"move by turning and twisting," O.E. windan "to turn, twist, wind" (class III strong verb; past tense wand, pp. wunden), from P.Gmc. *wendanan (cf. O.S. windan, O.N. vinda, O.Fris. winda, Du. winden, O.H.G. wintan, Ger. winden, Goth. windan "to wind"), from PIE *wendh- "to turn, wind, weave" (cf. L. viere "twist, plait, weave," vincire "bind," Lith. vyti "twist, wind"). Related to wend, which is its causative form, and to
wander. Wind down "come to a conclusion" is recorded from 1952; wind up "come to a conclusion" is from 1825. Winding sheet "shroud of a corpse" is attested from c.1420.