What is the meaning of Demit?

To let fall; to depress; to yield.

To relinquish an office, membership, authority, etc.; to resign, as from a Masonic lodge.

The act of demitting.

A document certifying that a person has (honourably) demitted, as from a Masonic lodge.

third-person singular present active indicative of dēmō

Source: wiktionary.org