رهو

فَرَسٌ مِرْهَاةٌ ذ , with kesr, (K, TA,) like مِسْحَاةٌ [in form], (TA,) or مِرْهَاآءٌ, (JK, and so in the CK, [like مِرْخَاآءٌ in form, and, as most explain the latter, similar also in meaning, whence it seems that مِرْهَاآءٌ is the more probably correct,]) A quick, swift, or fleet, mare: (JK, * K, TA:) pl. مَرَاهِى, (JK, K,) [or rather مَرَاهٍ if the sing. be مِرْهَاةٌ, and مَرَاهِىّْ if the sing. be مِرْهَاآءٌ,] like مَسَاحِى [or rather مَسَاحٍ], (TA,) or like مَرَاخِى [or rather مَرَاخِىّْ, pl. of مِرْخَاآءٌ]: (JK:) but in the M, it is ↓ رَهْوَى, [app. meaning that the sing. is thus,] like سَكْرَى; and in like manner in the Tekmileh and the Jm. (TA.)