rebate

a refund of some fraction of the amount paid

a rectangular groove made to hold two pieces together

Diminution.

A rectangular longitudinal recess or groove, cut in the corner or edge of any body; a rabbet. See Rabbet.

give a reduction in the price during a sale

cut a rebate in (timber or stone)

join with a rebate

To beat to obtuseness; to deprive of keenness; to blunt; to turn back the point of, as a lance used for exercise.

To abate; to withdraw.

To cut a rebate in. See Rabbet, v.