demit (Verb) — To lay down or relinquish an office, membership, authority, or the like; to resign, as from a Masonic lodge; - generally used with an implication that the act is voluntary.
demit (Verb) — To yield or submit; to humble; to lower; as, to demit one's self to humble duties.
demit (Noun) — The act of demitting; also, a letter, certificate, or the like, certifying that a person has (honourably) demitted, as from a Masonic lodge.