I love the way it means creature, demon, or child:
wight (n.)
O.E. wiht "living being, creature," from P.Gmc. *wekhtiz (cf. O.S. wiht "thing, demon," Du. wicht "a little child," O.H.G. wiht "thing, creature, demon," Ger. Wicht "creature, infant," O.N. vettr "thing, creature," Swed. vätte...