transitive. To renounce. rare.

To deny, renounce, or repudiate allegiance to (God, a lord, etc.). Also rarely, forsake to.

transitive. To renounce, abjure (one's faith, God, etc.). Also intransitive.

intransitive. To depart from, leave behind (a person, friendship, etc.); esp. to leave without help or support; to abandon or desert. Cf. to fall away…

transitive. To renounce or forsake (a person, god, etc.); spec. to repudiate or divorce (a spouse). Obsolete.

intransitive. To abandon or renounce one's religious faith or moral practice; to apostatize. Frequently with from.

transitive. To renounce, abandon, or deny; spec. to abandon, become an apostate to (one's faith). Now somewhat archaic.

intransitive. To convert to (†unto) (another religion, etc.); to become apostate; to depart from (a faith, etc.). Obsolete.