(transitive) To prevent, delay or hinder something by taking precautionary or anticipatory measures; to avert. / (transitive) To preclude or bar from happening, render impossible.

(obsolete or historical) An ambush; plot; an interception; waylaying; rescue. / Something situated or placed in front.

(nautical) A stay that extends from the top of the foremast to the bow or bowsprit of a sailing ship

(transitive) To stay beforehand; secure or fasten with or as with a forestay.

(transitive) To stay, delay, postpone, or hinder beforehand; forestall; prevent.

plural of forestay

Third-person singular simple present indicative form of forestall

simple past tense and past participle of forestall

present participle of forestall

The act of one who forestalls.