\Re*grate"\ (r?*gr?t"), v. t. [imp. & p. p. {Regrated};
p. pr. & vb. n. {Regrating}.] [F. regratter, literally, to
scrape again. See {Re}-, and {Grate}, v. t.]
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. [Obs.] --Derham.

\Re*grate"\, v. t. [F. 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.