a. Habitual; customary; wonted. “Accustomable goodness.” Latimer. [ 1913 Webster ]
a. [ Cf. OF. coustumable. ] [ 1913 Webster ]
n. Quality of being customable; conformity to custom. [ Obs. ] [ 1913 Webster ]
a. Not customable, or subject to customs duties. [ 1913 Webster ]