from E-NED: from wight, Old English wiht "living being, creature," from Proto-Germanic *wekhtiz (cf. Old Saxon wiht "thing, demon," Dutch wicht "a little child," Old High German wiht "thing, creature, demon," German Wicht "creature, infant," Old Norse vettr "thing, creature," Swedish vätte "spirit of the earth, gnome," Gothic waihts "something"). The only apparent cognate outside Germanic is Old Church Slavonic vešti "a thing + - ling
From: Arthour and Merlin: A Metrical Romance
Edited from the Auchinleck MS.
By William B. Turnbull, 1838