The story
- Proto-Indo-European*pós
- Proto-Indo-European*pósti
- Proto-Italic*posti
- Old Latinposte
- Latinpost
- Englishpost-
- Proto-Indo-European*deh₃-redup.
- Proto-Indo-European*dédeh₃ti
- Proto-Italic*didō
- Latindō
- Late Latindatus
- Late Latindata
- Old Frenchdate
- Middle Englishdate
- Englishdate
- English todaypostdate
Etymology from Wiktionary, CC BY-SA 4.0.