مرس

فَحْلٌ مَرَّاسٌ ذ A strong stallion: (K:) or a stallion strong, or vehement in labour or exertion. (M, Sgh.) ― -b2- لَيْلَةٌ مَرَّاسَةٌ (tropical:) A night's journey in which is no remissness or languor; (M;) i. e., (M,) a hard and fatiguing and long night's journey. (IAar, M, K.)