مرس

مَرَسَةٌ ذ , (S, K,) or ↓ مَرَسٌ, (A,) or both, the latter being sometimes used as a sing., (M,) A rope: (S, M, K:) so called because of the strong twisting and adhering (تَمَرُّس) of its strands, one upon another: (TA:) pl. [or rather coll. gen. n.] of the former, مَرَسٌ; (S, M, K;) and pl. pl., (M, K,) [i. e.] pl. of مَرَسٌ, (S, A, *) أَمْرَاسٌ. (S, M, A * K.) ― -b2- Also, the former, A dog's rope: pl. as above. (M.)