scuba

scuba · noun, verb¹

1. Proto-Indo-European*swé?
2. Proto-Indo-European*selbʰ-
3. Proto-Germanic*selbaz
4. Old Englishself
5. Old Englishself-
6. Middle Englishself-
7. Englishself-
8. Proto-Indo-European*ḱe?
9. Proto-Indo-European*ḱóm
10. Proto-Italic*kom
11. Proto-Italic*kom-
12. Latincon-
13. Proto-Indo-European*ten-
14. Proto-Indo-European*tn̥eh₁yéti
15. Proto-Italic*tenēō
16. Latinteneō
17. Latincontineō
18. Latincontinēre
19. Old Frenchcontenir
20. Middle Englishconteinen
21. Englishcontain
22. Englishcontained
23. Englishself-contained
24. Proto-Indo-European*h₁én
25. Proto-Indo-European*h₁entér
26. Proto-Indo-European*h₂én
27. Proto-Indo-European*dʰeh₁-?
28. Proto-Indo-European*(H)n̥dʰí
29. Proto-Indo-European*(H)n̥dʰér
30. Proto-Germanic*under
31. Proto-West Germanic*undar
32. Old Englishunder-
33. Middle Englishunder-
34. Englishunder-
35. Proto-Indo-European*wed-
36. Proto-Indo-European*wódr̥
37. Proto-Germanic*watōr
38. Proto-West Germanic*watar
39. Old Englishwæter
40. Middle Englishwater
41. Englishwater
42. Englishunderwater
43. Middle Englishbreeth
44. Middle Englishbrethen
45. Englishbreathe
46. Englishbreathing
47. Proto-Indo-European*h₂éd
48. Proto-Italic*ad
49. Proto-Italic*ad-
50. Latinad-
51. Proto-Indo-European*perh₃-
52. Proto-Indo-European*pr̥h₃o-
53. Proto-Italic*paro-
54. Latinparō
55. Latinapparō
56. Latinapparātu
57. Englishapparatus
58. EnglishSCUBA
59. English todayscuba

From SCUBA, acronym of self-contained underwater breathing apparatus; now usually viewed as anacronymic.

SCUBA · noun²

Acronym of self-contained underwater breathing apparatus.