A large Brazilian pineapple.

plural of abacus

(nautical) to bring the wind onto the forward side of the sails to slow the ship

(idiomatic, transitive) To surprise or shock; to discomfit. / (nautical, usually passive) Of a ship: to catch it with the sails aback suddenly.

(archaic) Backward.

Third-person singular simple present indicative form of abacinate

simple past tense and past participle of abacinate

plural of abaculus

plural of abaca

plural of abactor