a. 1. Familiar through use; usual; customary. “An accustomed action.” Shak. [ 1913 Webster ]
2. Frequented by customers. [ Obs. ] “A well accustomed shop.” Smollett. [ 1913 Webster ]
n. Habituation. [ 1913 Webster ]
Accustomedness to sin hardens the heart. Bp. Pearce. [ 1913 Webster ]