The story
- Proto-Indo-European*kap-?
- Proto-Indo-European*kap-
- Proto-Indo-European*káput
- Proto-Germanic*haubudą
- Old Englishhēafod
- Middle Englishheed
- Englishhead
- Proto-Indo-European*ped-
- Proto-Indo-European*pṓds
- Proto-Germanic*fōts
- Proto-West Germanic*fōt
- Old Englishfōt
- Middle Englishfot
- Englishfoot
- English todayheadfooter
From head + foot + -er.. Possibly a calque of Dutch kopvoeter / koppoter, and/or of German Kopffüßler.
Etymology from Wiktionary, CC BY-SA 4.0.