Merriam-Webster's Collegiate® Dictionary, 11th Edition
IMP
I. noun
Etymology: Middle English impe, from Old English impa, from impian to imp Date: before 12th century shoot , bud ,
2. a small demon ; fiend , a mischievous child ; urchin ,
II. transitive verb see: be
Date: 15th century
to graft or repair (a wing, tail, or feather) with a feather to improve a falcon's flying capacity, to equip with wings,
III. abbreviation imperative, imperfect, imperial, import; imported