The story
- Proto-Indo-European*h₃er-
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*h₃érdʰeti?
- Proto-Indo-European*h₃erdʰ-
- Proto-Hellenic*ortʰwós
- Ancient Greekὀρθός (orthós)
- Englishortho-
- Proto-Indo-European*bʰeh₂-
- Proto-Indo-European*bʰéh₂os
- Proto-Hellenic*pʰáwos
- Ancient Greekφᾰ́ος (phắos)
- Ancient Greekφῶς (phôs)
- Ancient Greekφωτο- (phōto-)
- Proto-Indo-European*gerbʰ-
- Proto-Hellenic*grə́pʰō
- Ancient Greekγρᾰ́φω (grắphō)
- Frenchphotographie
- Englishphotography
- English todayorthophotography
From ortho- (“straight”) + photography.
Etymology from Wiktionary, CC BY-SA 4.0.