The story
- Proto-Indo-European*h₂ep
- Proto-Indo-European*h₂epó
- Proto-Indo-European*h₂pó
- Proto-Italic*po
- Proto-Indo-European*teḱ-
- Proto-Indo-European*tḱéytibf.
- Proto-Indo-European*tḱey-
- Proto-Indo-European*tḱinéti
- Proto-Italic*sinō
- Proto-Italic*pozinō
- Latinpōnō
- Latinposita
- Italianposta
- Middle Frenchposte
- Englishpost
- Latincaudex
- Latincōdex
- Old Frenchcode
- Middle Englishcode
- Englishcode
- English todaypostcode
Etymology from Wiktionary, CC BY-SA 4.0.