Meaning

originFrom Middle English fenny, fenni (“marshy, muddy; of meat: putrid, rotten; of a person: sinful, vile”), from Old English fenniġ (“dirty; marshy, muddy, fenny”), from fen, fenn (“marsh, fen; mud”) (ultimately from Proto-Indo-European *pen- (“moist, wet; mud; swamp; water”)) + -iġ (suffix forming adjectives). The English word is analysable as fen + -y (suffix meaning ‘having the quality of’ forming…

Etymology from Wiktionary, CC BY-SA 3.0