v. i. - To rise in blisters, breaking in white froth, as cane juice in the clarifiers in sugar works.
v. i. & t. - To steer wild, or out of the line of her course; to deviate from her course, as when struck by a heavy sea; -- said of a ship.
n. - A movement of a vessel by which she temporarily alters her course; a deviation from a straight course in steering.