رخو

رِخْوٌ ذ and رَخْوٌ (Lth, S, M, Msb, K) and رُخْوٌ; (M, Msb, K;) but accord. to As and Fr, the first is that which is approved, (TA,) or, accord. to Az, it is that used by the Arabs; (Msb;) the second, accord. to As and Fr (TA) and Az, (Msb,) being post-classical; (Msb, TA;) and the third is of the dial. of the Kilábees; (Msb;) applied to a thing (S, K) of any kind, (K,) Soft, yielding, flaccid, flabby, lax, slack, uncompact, crummy, fragile, frangible, brittle, friable, easily or quickly broken; syn. هَشُّ; (S, K;) or لَيَّنٌ سَهْلٌ; (Msb;) [and ↓ مُسْتَرْخٍ signifies the same, as is shown by the explanation of its verb in the first sentence of this art.:] the fem. is with ة, i. e. رِخْوَةٌ and رَخْوَةٌ and رُخْوَةٌ (K) [and مُسْتَرْخِيَةٌ]. You say حَجَرٌ رِخْوٌ or رَخْوٌ or رُخْوٌ A stone that is soft, yielding, &c. (Msb.) ― -b2- And فَرَسٌ رِخْوَةٌ A mare that is easy, and gentle, moderate, deliberate, or leisurely, in pace. (S.) And فَرَسٌ رِخْوُ العِنَانِ A horse that is easy to be led, or tractable. (A, TA.) The phrase فَهِىَ رِخْوٌ is used in a verse of Aboo-Dhu-eyb instead of فهى رِخْوَةٌ because meaning فَهِىَ شَىْءٌ رِخْوٌ. (S.) ― -b3- الحُرُوفُ الرِّخْوَةُ [which may be rendered The lax letters ] is said in the K, by an anticipation of the pen, to be applied to the letters exclusive of those comprised in the phrase لَمْ يُرْعُونَا [for which some say لَمْ يَرْوِ عَنَّا]: Sgh says [correctly] that they are the letters exclusive of those termed الشَّدِيدَةُ and of those in the phrase لم يرعونا: as is said in the M, they are thirteen; namely, ث,ح,خ,ذ,ز,س,ش,ص,ض,ظ,غ,ف, and ه; [to which De Sacy adds, in his Grammar, (2nd ed. i. 29,) ا without ء, and و and ى, which are generally included in an intermediate class between the شديدة and the رخوة, namely, in the class consisting of the letters in the phrase لم يرعونا or لم يرو عنّا:] the letter termed رِخْوٌ is that in which the sound runs on, as it does, for instance, in the س and ش when you say المَسّ and الرَّشّ. (TA.)