baryonic

The story

1. Proto-Indo-European*gʷreh₂-
2. Proto-Indo-European*gʷréh₂us
3. Proto-Hellenic*gʷarus
4. Ancient Greekβαρύς (barús)
5. Ancient Greekἤλεκτρον (ḗlektron)
6. Latinēlectrum
7. New Latinēlectricus
8. Englishelectric
9. Proto-Indo-European*h₁ey-
10. Proto-Indo-European*h₁éyti
11. Proto-Hellenic*éimi
12. Ancient Greekἰόν (ión)
13. Englishion
14. Englishelectronbf.
15. Englishbaryon
16. English todaybaryonic

From baryon + -ic.