The story
- Englishturtle
- Proto-Indo-European*kap-?
- Proto-Indo-European*kap-
- Proto-Indo-European*káput
- Proto-Germanic*haubudą
- Old Englishhēafod
- Middle Englishheed
- Englishhead
- English todayturtlehead
From turtle + head, from the shape of the flower. Influenced by the taxonomic name Chelone.
Etymology from Wiktionary, CC BY-SA 4.0.