verb

• (transitive)
  "[Jupiter] whiche by his goodnes as Marcianus ſaieth, abateth the malice of Saturne. Therfore the Poets faine, that he did put his father out of his kingdome, Iſidore writeth as he abateth the malice of the euill Planets, […]"
• (transitive)
  "Thou haſt dominion ouer their power, and when they be exalted & ſet aloft in their waies, thou abateſt their courage, and deſtroyeſt them with thy mighty arme."
• (transitive)
• (transitive)
  "Few words drive a bargain with Peter Eskett. I never abate one farthing of my price; but then that price never asks more than a fair profit."

noun

• (uncountable) Abatement; reduction; (countable) an instance of this.
  "[Letter to Algernon Sidney dated 13 October 1681 (Julian calendar).] There are many things make a man's life uneasy in the world, which are great abates to the pleasure of living, but scarcely one equal to that of the unkindness or injustice of friends."
• (uncountable) Deduction; subtraction; (countable) an instance of this.
  "That men weigh heavier dead than alive, if experiment hath not failed us, we cannot reaſonably grant. For though the triall hereof cannot ſo well be made on the body of Man, nor will the difference be ſenſible in the abate of ſcruples or dragmes, yet can we not confirm the ſame in leſſer animalls from whence the inference is good; […]"

verb

• (ambitransitive, law, chiefly historical) To enter upon and unlawfully seize (land) after the owner has died, thus preventing an heir from taking possession of it.
  "So, if Lands be given to Father and Son, and to the heirs of their two bodies begotten, the remainder over in fee, and afterwards the Father dieth without any Iſſue but the Son, and afterwards the Son dieth without Iſſue, and a Stranger abateth, he in the remainder ſhall have one Formedon in the remainder, although the Eſtate tails were ſeveral, […]"