1. (folklore) fairies that are somewhat mischievous
2. one who is playfully mischievous
1. (obsolete) To plant or engraft.
2. (archaic) To graft, implant; to set or fix.
3. (falconry) To engraft feathers into a bird's wing.
- "For, if I imp my wing on Thine" – Herbert (1633)
4. To eke out, strengthen, enlarge.