REBATEv.t.
To blunt; to beat to obtuseness; to deprive of keenness.
He doth rebate and blunt his natural edge.
The keener edge of battle to rebate.
REBATE
REBATEMENT, n.
1. Diminution.
2. In commerce, abatement in price; deduction.
3. In heraldry, a diminution or abatement of the bearings in a coat of arms.