bioinactive

The story

1. Proto-Indo-European*gʷeyh₃-
2. Ancient Greekβῐ́ος (bĭ́os)
3. Ancient Greekβῐο- (bĭo-)
4. Englishbio-
5. Proto-Indo-European*né
6. Proto-Indo-European*n̥-
7. Proto-Italic*n̥-
8. Latinin-
9. Proto-Indo-European*h₂eǵ-
10. Proto-Indo-European*h₂éǵeti
11. Proto-Italic*agō
12. Latinagō
13. Ancient Greekἐνεργητικός (energētikós)
14. Latināctīvus
15. Latinināctīvu
16. Frenchinactif
17. Englishinactive
18. English todaybioinactive

From bio- + inactive.