radiophoto

The story

1. Englishradio-
2. Proto-Indo-European*bʰeh₂-
3. Proto-Indo-European*bʰéh₂os
4. Proto-Hellenic*pʰáwos
5. Ancient Greekφᾰ́ος (phắos)
6. Ancient Greekφῶς (phôs)
7. Ancient Greekφωτο- (phōto-)
8. Englishphoto-
9. Proto-Indo-European*gerbʰ-
10. Proto-Hellenic*grə́pʰō
11. Ancient Greekγράφω (gráphō)
12. Englishphotographclip.
13. Englishphoto
14. English todayradiophoto

From radio- + photo.