همذهَمَاذِىٌّ, (S, L,) or هُمَاذِىٌّ, (L, in all its senses,) Quickness (L, K) in running: (L:) or exertion, or haste, in pace, or in going. (Sh, L.) b2: Violence, of rain: (A 'Obeyd, S, L, K:) and [so in the L: in the TA, as some say,] violent  occasions of rain, and of mutual reviling, and of running; which are sometimes violent, and at other times remit: (L:) and violence of heat; (IAar, L, K;) as also حُمَاذِىٌّ. (IAar, L.) Yousay, يَوْمٌ ذُوهُمَاذِىٍّ, and حُمَاذِىٍّ, A day of violent heat. (IAar, L.) b3:  Quick, or swift; (A 'Obeyd, S, L, K;) applied to a she-camel, (A 'Obeyd, S, L, K,) and to a he-camel, (A 'Obeyd, S, L.)