According to custom, or to established or common usage; wonted; usual: as, a customary dress; customary compliments.Consisting in or established on custom.Habitual; in common practice: as, customary vices.In English law: Holding by the custom of the manor: as, customary tenants, who are copyholders.Held by the custom of the manor: as, a customary freehold.n. A book or document containing a statement or account of the legal customs and rights of a province, city, manor, etc.: as, the customary of Normandy. Formerly also written custumary, costomary.n. A book which treats of the rules, regulations, usages, and ceremonies to be observed by a religious community, order, or college. Also custumary.