لهب1 لَهِبَ, aor. ـَ (inf. n. لَهَبٌ, S,) (tropical:)  He thirsted; was thirsty: (S, K:) [probably, burned with thirst].2 لهّب النَّارَ [same as ↓ أَلْهَبَهَا, except that it has an intensive signification; He made the fire to flame, or blaze, fiercely, or intensely: or, to flame, or blaze, without smoke, fiercely, or intensely.] (K.) 4 الهب النَّارَ He made the fire to flame, or blaze: (S:) or made it to flame, or blaze, free from smoke. (K.) b2:  الهب It (lightning) flashed  uninterruptedly. (K.) See also أَهْلَبَ. b3:  الهب, inf. n. إِلْهَابٌ, He (a horse, As, or other thing that runs, Lh,) was ardent, or impetuous, in his course, or running; (As, S;) as also اهلب: (As:) or he ran with energy, or effort, so as to raise the dust: (K:) or he ran violently, raising the لَهَبَ, or dust. (TA.) b4:  Hence, الهب فِىالكَلَامِ (tropical:)  He spoke rapidly [and with vehemence]. (TA.) b5:  الهبهُ الأَمْرُ (tropical:)  The thing, or affair, excited him, and inflamed him. (TA.) 5 تلهّبت النَّارُ, quasi-pass. of لَهَّبَ, (K,) [same as ↓ إِلْتَهَبَتْ, except that it has an intensive signification;] The fire flamed, or blazed, (S,) [fiercely, or intensely, or flamed, or blazed, burned without smoke, fiercely, or intensely].b2:  تلهّب جُوعًا, and جوعا ↓ التهب, (tropical:)  He burned with hunger. (TA.) b3:  تلهّب غَيْظًا He burned, and was or became hot, with wrath, or rage. (TA, art. وغر.) See 8.8 التهبت النَّارُ, quasi-pass. of أَلْهَبَ, (K,) The fire flamed, or blazed: (S:) or flamed, or blazed, free from smoke. (K.) b2:  التهب عَلَيْهِ (tropical:)  He was incensed, or inflamed with anger, against him. (TA.) b3:  التهب and ↓ تلهّب [It (any part of the body) became inflamed]. b4:  See 5.لَهْبٌ: see لَهَبٌ.لِهْبٌ A gap, or space, between two mountains: (S, K:) or a cleft, or fissure, in a mountain: (Lh, K:) or a small gap, or ravine, such as is termed شِعْبٌ, in a mountain: (K:) or a cleft in a mountain, afterwards widening like a road: a لِصْب and a شَقّ are smaller than a لهب; like a small road: (Aboo-Sa'eed-Es-Sukkaree:) or a face of a mountain, resembling a wall, that cannot be ascended: (K:) and similar to this is the لهب of the sky at the horizon: or, as some say, a subterranean excavation, or habitation: syn. سَرَبٌ فِى الأَرْضِ: (TA:) pl. أَلْهَابٌ and لُهُوبٌ and لِهَابٌ (S, K) and لِهَابَةٌ. (K.) See an ex. voce  كَرَبَة.لَهَبٌ and ↓ لَهْبٌ (K) and ↓ لَهِيبٌ and ↓ لُهَابٌ and ↓ لَهَبَانٌ (S, K), [inf. ns., of which the verb, لَهِبَ, aor. ـَ does not appear to have been used in the classical ages,] The flaming, or blazing, of fire: (S:) or its flaming, or blazing, free from smoke: (T, K:) or لَهَبٌ signifies the flame, or blaze, of fire: (S, K:) and ↓ لَهِيبٌ, its heat. (K.) b2:  لَهَبٌ Dust rising (K) like smoke. (TA.) لُهْبَةٌ A clear white colour: (K:) brightness of the complexion, or colour of the skin. (TA.) b2: لُهْبَةٌ (in two copies of the S, لَهْبَةٌ; but in the K expressly said to be with dammeh;) and ↓ لُهَابٌ and ↓ لَهَبَانٌ (K) (tropical:)  Thirst: (S, K:) [probably burning thirst].لَهَبَانٌ: see لَهَبٌ and لُهْبَةٌ. b2:  Also, The burning of coals, or embers, without blazing. (T.) b3:  The burning of heat upon heated ground. (TA.) b4: Vehemence of heat (K) upon heated ground and the like. (ISd.) b5:  A hot day. (K.) لَهْبَانُ, fem. لَهْبَى, (tropical:)  Thirsty: (S, K:) [probably burning with thirst:] an epithet applied to a man or woman: (S:) pl. لِهَابٌ. (K.) لُهَابٌ: see لَهَبٌ and لُهْبَةٌ.لَهِيبٌ: see لَهَبٌ.لُهَابَةٌ A garment (كِسَاءٌ) in which a stone is put, and with which one side of the kind of camel-litter called هَوْدَج, or one side of a load, is balanced. (Th.) أُلْهُوبٌ, a subst., The ardour, or impetuosity, of a horse (&c., Lh) in his course, or running: (S:) or his energy, or effort, in his course, so that he raises the dust: or a violent run, by which the dust (اللَّهَبُ) is raised: (TA:) or the commencement of a horse's course, or run. (K.) b2:  لَهُ أُلْهُوبٌ He runs violently, raising the dust. (TA.) See also أُهْلُوبٌ. b3:  Also used as an epithet: you say شَدٌّ أُلْهُوبٌ [A violent run, in which the dust is raised]. (TA.) مِلْهَبٌ Pleasing in beauty: (IAar, K:) and having much hair: an epithet applied to a man. (IAar.) مُلَهَّبٌ (tropical:)  A garment, or piece of cloth, not saturated with red dye: (K:) imperfectly dyed. (TA.)