intransitive for reflexive (also with up). To rise. Said esp. of a vessel riding on the waves, occasionally of the waves themselves. Also in quasi-p…

heave and set: to rise and fall, as a floating object upon the waves.

intransitive. To rise and fall or toss on the waves; to ride (at anchor, or along over the waves). †In earliest use, ? to come to anchor; cf. French s…

Of a ship, also of the sea: To move slowly up and down. Obsolete. rare.

(See quot. 1625.)

intransitive. Of a ship: to plunge downwards at the bow into the trough of the sea (cf. send, v.2). Hence also: to rise and fall alternately at bow…

intransitive. To walk or move with an up-and-down or jerky movement; to move in an exaggerated or affected manner. Also (of a horse, etc.) to move…