The story
- Latinradius
- Englishradio-
- 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 Greekγρᾰ́φω (grắphō)
- Ancient Greekγραφή (graphḗ)
- Englishphoto-
- Ancient Greekγράφω (gráphō)
- Englishphotograph
- Englishphotographic
- English todayradiophotographic
From radio- + photographic.
Etymology from Wiktionary, CC BY-SA 4.0.