n. & v.
n. 1 a mischievous child. 2 a small mischievous devil or sprite.
v.tr. 1 add feathers to (the wing of a falcon) to restore or improve its flight. 2 archaic enlarge; add by grafting.
[ OE impa, impe young shoot, scion, impian graft: ult. f. Gk emphutos implanted, past part. of emphuo ]