The story
- Proto-Indo-European*pós
- Proto-Indo-European*pósti
- Proto-Italic*posti
- Old Latinposte
- Latinpost
- Englishpost-
- Proto-Indo-European*kelh₁-
- Proto-Italic*klāssis
- Latinclassis
- Latinclassicu
- Frenchclassique
- Englishclassic
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishclassical
- English todaypostclassical
Etymology from Wiktionary, CC BY-SA 4.0.