Meaning

noun a soft wet area of low-lying land that sinks underfoot

noun deep soft mud in water or slush

noun a difficulty or embarrassment that is hard to extricate yourself from

originFrom Middle English mire, a borrowing from Old Norse mýrr, from Proto-Germanic *miuzijō, whence also Swedish myr, Norwegian myr, Icelandic mýri, Dutch *mier (in placenames, for example Mierlo). Related to Proto-Germanic *meusą, whence Old English mēos, and Proto-Germanic *musą, whence Old English mos (English moss).

Etymology from Wiktionary, CC BY-SA 3.0