abate (v.)
blunt, put an end to
2H4 I.i.117[Morton to Northumberland, of Percy] from his metal was his party steeled, / Which once in him abated, all the rest / Turned on themselves
R3 V.v.35[Richmond praying to God] Abate the edge of traitors [i.e. of their swords]
SHAKESPEARE'S WORDS © 2018 DAVID CRYSTAL & BEN CRYSTAL