تيرتَارٌ and تَارَةٌ (mentioned in this art. in the S): see the latter in art. تور.تِير A beam between two walls: (K: [in which this word, with the art. ال is explained by الجَائِزُ بَيْنَ الحَائِطِينَ: in the M, الحَاجِزُ بين الحائطين, i. e. a partition between two gardens, or walled gardens of palm-trees: the former I regard as the right reading (though SM thinks the contrary); for it expresses a well-known meaning of تِير in Persian; and it is said that تِيرٌ is] a Persian word, arabicized. (M.) A2:  (assumed tropical:)  Vanity, or a fond opinion of oneself, (K,) and pride. (TA.) تَيَّارٌ Waves: (S, M, A, Msb:) or waves of the sea, or of a great river, (M, IAth, K,) having a current; (K,* TA;) and its main body, or deep: (IAth, TA:) [in the present day, the current, or main current, of a sea or great river:] or vehemence of flow or current: (Msb:) accord. to some, of the measure فَعَّالٌ, from تير; (Msb;) i. c., from تِيرٌ signifying “ vanity ” and “ pride: ” (TA:) accord. to others, of the measure فَيْعَالٌ, (Msb, TA,) from تَارَ, aor. ـُ though this verb is obsolete, (TA,) originally تَيْوَارٌ, the و being changed into ى and then incorporated into the preceding ى. (Msb.) b2:  Applied to a man, (tropical:)  Vain, or having a fond opinion of himself, (A, K,) and proud; (K;) who swells up like waves, in his vanity. (A.) b3:  (tropical:)  A horse that rises like waves in his running.. (A.) b4:  (tropical:)  A vein that runs, or flows, quickly, when cut. (S, A, K.)