To give (a person) warrant or authority, authorize (to do something); to authorize, sanction (a course of action).

transitive. To authorize or permit (something normally forbidden, wrong, etc.); to justify, excuse, sanction. Obsolete.

To warrant, sanction, authorize; to confirm, corroborate.

transitive. To affirm or show to be legitimate; to authorize or justify by word or example; to serve as justification for.

transferred. To impart real or apparent sacredness to; to entitle to reverence or respect; to give a colour of morality or innocence to; to…

To allege sanction for; to justify as permissible.

transitive. = legitimatize, v.