Webster's Revised Unabridged Dictionary · 1913

Regrate

Regrate (r?*gr?t") , transitive verb

[French regratter, literally, to scrape again. See Re-, and Grate, transitive verb]

1.
(Masonry) To remove the outer surface of, as of an old hewn stone, so as to give it a fresh appearance.
2.
To offend; to shock. [Obsolete] — Derham

Regrate , transitive verb

[French regratter to regrate provisions; of uncertain origin.]

(Eng.Law) To buy in large quantities, as corn, provisions, etc., at a market or fair, with the intention of selling the same again, in or near the same place, at a higher price, -- a practice which was formerly treated as a public offense.