The story
- Old English · inherited fromsǣfugol“seabird”
- Middle English · inherited fromsefoul
- English todayseafowl
From Middle English sefoul, from Old English sǣfugol (“seabird”), equivalent to sea + fowl. Cognate with Dutch zeevogel, German Seevogel, Swedish sjöfågel, Icelandic sjófugl.
Etymology from Wiktionary, CC BY-SA 4.0.