rebate

noun

1. A deduction from an amount that is paid; an abatement.
2. The return of part of an amount already paid.
3. The edge of a roll of film, from which no image can be developed.
4. A rectangular groove made to hold two pieces (of wood etc) together; a rabbet.

   “For your existing windows, the glazing rebates will also have to be deepened to provide the extra gap.”

5. A piece of wood hafted into a long stick, and serving to beat out mortar.
6. An iron tool sharpened something like a chisel, and used for dressing and polishing wood.
7. A kind of hard freestone used in making pavements.

verb

1. (transitive)To deduct or return an amount from a bill or payment
2. (transitive)To diminish or lessen something
3. To beat to obtuseness; to deprive of keenness; to blunt; to turn back the point of, as a lance used for exercise.

   “But doth rebate and blunt his natural edge.”

   “Then near the corslet, at the monarch’s heart, With all his strength, the youth directs his dart: But the broad belt, with plates of silver bound, The point rebated, and repell’d the wound.”

4. (transitive)To cut a rebate (or rabbet) in something
5. To abate; to withdraw.

   “he began a little to rebate from certain points of popery”

6. (intransitive)Of a falcon: to return to the hand after bating; see bate².

   “The ſecunde is rebate youre hawke: to yowre fyſt, ⁊ thatt is whan yowre hawke batith, the leeſt meuyng that ye can make with yowre fyſt ſhe will rebate ayen vppon yowre fyſt[.]”