تَاسُوعَاءُ

, (Msb, TA, &c.,) or التَّاسُوعَاءُ, (S, K,) The tenth day of [the month] El-Moharram; (Msb, TA;) [the day] before the day of العَاشُورَاءُ, (S,) or before the day of عَاشُورَاءُ: (K:) or, according to some, the same as the day of العاشوراء: (TA:) [see عاشوراء, where this is explained:] it is a post-classical word: (Sgh, K:) J says, in the S, I think it post-classical: (Msb, TA:) but [SM says,] this requires consideration; for it was used by the Prophet: (TA:) one ought to say, that, with عاشوراء, it has this form for the sake of resemblance; but as used alone, it must be conceded that it has not been heard [from the Arabs of the classical times]. (Msb.)