unconsuming

The story

1. Proto-Indo-European*né
2. Proto-Indo-European*n̥-
3. Proto-Germanic*un-
4. Proto-West Germanic*un-
5. Old Englishun-
6. Middle Englishun-
7. Englishun-
8. Proto-Indo-European*ḱe?
9. Proto-Indo-European*ḱóm
10. Proto-Italic*kom
11. Proto-Italic*kom-
12. Latincon-
13. Proto-Indo-European*upó
14. Proto-Italic*supo
15. Latinsub
16. Latinsub-
17. Proto-Indo-European*h₁em-
18. Proto-Indo-European*h₁émeti
19. Proto-Italic*emō
20. Latinemō
21. Latinsūmō
22. Latincōnsūmō
23. Old Frenchconsumer
24. Middle Englishconsumen
25. Englishconsuming
26. English todayunconsuming

From un- + consuming.