Meaning

originFrom Middle English misy (“swamp, bog”), of uncertain origin. Possibly from Old English *mȳsiġ, *mīesiġ, from Proto-West Germanic *miusiju, from Proto-Germanic *miusijō (“swamp, bog”, literally “mossy place”), from Proto-Germanic *meusą (“moss, moor”), related to Old Norse mýrr ("swamp, bog, moor"; whence English mire), Middle English mes, mease, mise, mese (“moss”), from Old English mēos…

Etymology from Wiktionary, CC BY-SA 3.0