امس

اـِمْسِىٌّ أمس أمسى أمسي أمسيي امسى امسي مسى , contr. to analogy, (M, TA,) and أَمْسِىٌّ [which is agreeable with analogy] is allowable, as related by Sgh on the authority of Fr, but the former is the more chaste, (TA,) Of, or relating to, or belonging to, yesterday. (M, TA.)