photoreproduction

The story

1. Proto-Indo-European*bʰeh₂-
2. Proto-Indo-European*bʰéh₂os
3. Proto-Hellenic*pʰáwos
4. Ancient Greekφᾰ́ος (phắos)
5. Ancient Greekφῶς (phôs)
6. Ancient Greekφωτο- (phōto-)
7. Englishphoto-
8. Proto-Italic*wre-
9. Latinre-
10. Old Frenchre-
11. Middle Englishre-
12. Englishre-
13. Proto-Indo-European*per-der.?
14. Proto-Indo-European*pér
15. Proto-Indo-European*pró
16. Proto-Indo-European*pro-
17. Proto-Italic*pro-
18. Latinprō-
19. Proto-Indo-European*dewk-
20. Proto-Indo-European*déwkti
21. Proto-Italic*doukō
22. Latindūcō
23. Latinprōdūcō
24. Latinprōductiō
25. Old Frenchproduction
26. Middle Englishproduccioun
27. Englishproduction
28. Englishreproduction
29. English todayphotoreproduction

From photo- + reproduction.