regrate

Etymology
.

Verb

 * 1) to grate again
 * 2) To purchase goods from a market in order to resell them at the same (or nearby) market at an inflated price.
 * 3)  To remove the outer surface of, as of an old hewn stone, so as to give it a fresh appearance.
 * 4) To offend; to shock.
 * 1) To offend; to shock.