countersurveillance

The story

1. Proto-Indo-European*ḱe?
2. Proto-Indo-European*ḱóm
3. Proto-Italic*kom
4. Proto-Italic*kom-
5. Proto-Italic*komteros
6. Proto-Italic*komterād
7. Latincontrā
8. Old Frenchcontre-
9. Anglo-Normancountre-
10. Middle Englishcounter-
11. Englishcounter-
12. Proto-Indo-European*úp
13. Proto-Indo-European*upér
14. Proto-Italic*super
15. Latinsuper
16. Latinsuper-
17. Old Frenchsur-
18. Proto-Indo-European*weǵ-
19. Proto-Indo-European*weǵlis
20. Proto-Italic*weglis
21. Latinvigil
22. Latinvigilō
23. Latinvigilāre
24. Vulgar Latin*viglāre
25. Old Frenchveillier
26. Old Frenchsurveillier
27. Frenchsurveiller
28. Frenchsurveillance
29. Englishsurveillance
30. English todaycountersurveillance

From counter- + surveillance.