reaccent

The story

1. Proto-Italic*wre-
2. Latinre-
3. Old Frenchre-
4. Middle Englishre-
5. Englishre-
6. Proto-Indo-European*h₂éd
7. Proto-Italic*ad
8. Proto-Italic*ad-
9. Latinad-
10. Proto-Indo-European*keh₂n-
11. Proto-Indo-European*kh₂néti
12. Proto-Italic*kanō
13. Latincanō
14. Latinaccinō
15. Ancient Greekπροσῳδῐ́ᾱ (prosōidĭ́ā)
16. Medieval Latinaccentus
17. Middle Frenchaccent
18. Anglo-Normanaccent
19. Middle Englishaccent
20. Englishaccent
21. English todayreaccent

From re- + accent.