The story
- Old English · inherited fromfūl“dirty”
- English todayFulwell
Inherited from Old English fūl (“dirty”), definite form fūla + wella (“spring”).
Words from the same roots
Old Englishfūl all →
foulFulfordFulwoodfoumartFulbeckFulbrookunfull
Etymology from Wiktionary, CC BY-SA 4.0.