The story
- Proto-Indo-European*bʰeh₂-
- Proto-Indo-European*bʰéh₂os
- Proto-Hellenic*pʰáwos
- Ancient Greekφᾰ́ος (phắos)
- Ancient Greekφῶς (phôs)
- Ancient Greekφωτο- (phōto-)
- Englishphoto-
- Proto-Indo-European*gerbʰ-
- Proto-Hellenic*grə́pʰō
- Ancient Greekγράφω (gráphō)
- Englishphotographclip.
- Englishphoto
- Ancient Greekμάραθον (márathon)
- Ancient GreekΜαραθών (Marathṓn)
- Frenchmarathon
- Englishmarathon
- English todayphotomarathon
Etymology from Wiktionary, CC BY-SA 4.0.