photobomb

photobomb · verb, noun¹

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-Indo-European*gerbʰ-
9. Proto-Hellenic*grə́pʰō
10. Ancient Greekγράφω (gráphō)
11. Englishphotographclip.
12. Englishphoto
13. Ancient Greekβόμβος (bómbos)
14. Latinbombus
15. Italianbomba
16. Frenchbombe
17. Englishbomb
18. English todayphotobomb

From photo + bomb.

Photobomb · proper noun²

From photobomb, in reference to Basil liking photography and Aubrey's heated, "explosive" personality. Compare Sunburn.