AccustomACCUS'TOM, verb transitiveTo make familiar by use; to form a habit by practice; to habituate or inure; as to accustom one's self to a spare diet.ACCUS'TOM, verb intransitive1. To be wont, or habituated to do anything. [Little used.]2. To cohabit. [Not used.]ACCUS'TOM, noun Custom. [Not used.]