The story
- Proto-Indo-European*h₂en-
- Proto-Germanic*an
- Proto-West Germanic*ana
- Old Englishon
- Middle Englishan
- Middle Englisha-
- Englisha-
- Proto-Indo-European*per-
- Proto-Indo-European*pértus
- Proto-Italic*portus
- Latinportus
- Old Englishport
- Englishport
- English todayaport
Etymology from Wiktionary, CC BY-SA 4.0.