aerosolize

The story

1. Proto-Indo-European*h₂ews-
2. Proto-Indo-European*h₂ewsér
3. Proto-Hellenic*auhḗr
4. Ancient Greekᾱ̓ήρ (āḗr)
5. Ancient Greekἀέρος (aéros)
6. Englishaero-
7. Proto-Indo-European*s(w)é
8. Latinse-
9. Proto-Indo-European*lewh₁-
10. Proto-Indo-European*luh₁éti
11. Proto-Italic[Term?]
12. Latinluō
13. Latinsolvō
14. Latinsolūtiō
15. Latinsolūtiōnem
16. Old Frenchsolucion
17. Middle Englishsolucioun
18. Englishsolution
19. Englishsol
20. Englishaerosol
21. English todayaerosolize

From aerosol + -ize.