antistress

The story

1. Proto-Indo-European*h₂ent-
2. Proto-Indo-European*h₂énts
3. Proto-Indo-European*h₂énti
4. Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
5. Ancient Greekἀντι- (anti-)
6. Englishanti-
7. Proto-Indo-European*dwóh₁
8. Proto-Indo-European*trísinflu.
9. Proto-Indo-European*d(w)is-
10. Proto-Italic*dis-
11. Latindis-
12. Proto-Indo-European*streyg-
13. Proto-Indo-European*strinégti
14. Proto-Italic*stringō
15. Proto-Indo-European*strengʰ-
16. Proto-Indo-European*stréngʰeti
17. Proto-Italic*strengō
18. Latinstringō
19. Latindistringō
20. Old Frenchdestrecier
21. Middle Englishdestresse
22. Englishstress
23. English todayantistress

From anti- + stress.