The story
- Proto-Indo-European · inherited from*pen-“moist, wet; mud; swamp; water”
- Old English · inherited fromfenniġ“dirty; marshy, muddy, fenny”
- Middle English · inherited fromfenny
- English todayfenny
From 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 adjectives).
Words from the same roots
Proto-Indo-European*pen- all →
Etymology from Wiktionary, CC BY-SA 4.0.