simple past tense and past participle of warrant

Authorized with a warrant. / Deserved, necessary, appropriate.

present participle of warrant

A guarantee.

plural of warranter

One who warrants, gives authority, or legally empowers. / One who gives a warranty or guarantee.

In a way that is justified; reasonably.

Justifiable, just, proper. / Authorized by warrant or right. / Of animals: having reached a sufficient age to be hunted.

Authorization or certification; a sanction, as given by a superior. / (countable) Something that provides assurance or confirmation; a guarantee or proof.

(transitive, obsolete) To protect, keep safe (from danger).