battleplane

The story

1. Proto-Indo-European*bʰedʰh₂-
2. Latinbattuō
3. Late Latinbattālia
4. Old Frenchbataille
5. Middle Englishbatayle
6. Englishbattle
7. Proto-Indo-European*h₂ews-
8. Proto-Indo-European*h₂ewsér
9. Proto-Hellenic*auhḗr
10. Ancient Greekᾱ̓ήρ (āḗr)
11. Ancient Greekπλανάω (planáō)
12. Ancient Greekᾱ̓ερόπλᾰνος (āeróplănos)
13. Frenchaéroplane
14. Englishaeroplaneclip.
15. Englishplane
16. English todaybattleplane

From battle + plane.