n. [ Cf. F. marais, LL. marascus. See Marsh. ] Low, wet ground; a marsh; a fen; a bog; a moor. [ Archaic ] Milton. Tennyson. [ 1913 Webster ]
a. 1. Moory; fenny; boggy. [ Archaic ] [ 1913 Webster ]
2. Growing in marshes. “Marish flowers.” Tennyson. [ 1913 Webster ]
adj. Terrifying, as if in a nightmare{ 2 }; resembling a nightmare{ 2 }. Syn. -- bloodcurdling, hair-raising. [ WordNet 1.5 ]