Available Definitions:
1) v. i. - To shift, as the boom of a fore-and-aft sail, from one side of a vessel to the other when the wind is aft or on the quarter. See Gybe .
2) v. i. - To change a ship's course so as to cause a shifting of the boom. See Jibe , v. t., and Gybe.
3) v. t. - To agree; to harmonize.