كحل1 كَحَلَ (assumed tropical:)  He put out, or blinded, an eye with a heated nail, &c.: see an ex. voce سَمَرَ.8 مَا اكْتَحَلْتُ غَمَاضًا and غِمَاضًا&c.: see أَغْمَضَ. See also حَثاَثٌ.10 اِسْتَكْحَلَ السَّهَرَ (assumed tropical:)  [He became sleepless; as though he took sleeplessness as a collyrium]. (TA in art. حلس, from a trad.) كَحْلٌ and كَحْلُ (S, K) A year of drought, barrenness, or dearth; (S;) a hard year. (K.) كُحَيْلٌ a proper name for A horse of high breed; as also ↓ كُحَيْلاَنٌ. (TA.) b2:  كُحَيْلٌ Tar (قَطِرَان) in the dial. of El-Hijáz. (TA, voce غَرْبٌ; from the T.) See نفْظٌ.كُحَيْلاَنٌ: see كُحَيْلٌ.عَيْنٌ كَحْلَآءُ An eye that is black, [or black in the edges of the lids,] by nature, as though it had كُحْل applied to it. (Mgh.) Not in the TA. [It seems to have both of these meanings.]كَحْلَآءُ A certain plant: see K, voce شِنْجَار: calendula arvensis: see Delile, Flor. Aeg., no.864.الأَكْحَلُ The median vein. See وَرِيدٌ and أَبْجَلُ and أَبْهَرُ and الصَّافِنُ.