electropositive

The story

1. Frenchélectro-
2. Ancient Greekἤλεκτρον (ḗlektron)
3. Latinēlectrum
4. Latinelectro-
5. Englishelectro-
6. Proto-Indo-European*h₂ep
7. Proto-Indo-European*h₂epó
8. Proto-Indo-European*h₂pó
9. Proto-Italic*po
10. Proto-Indo-European*teḱ-
11. Proto-Indo-European*tḱéytibf.
12. Proto-Indo-European*tḱey-
13. Proto-Indo-European*tḱinéti
14. Proto-Italic*sinō
15. Proto-Italic*pozinō
16. Latinpōnō
17. Latinīvus
18. Latinpositivus
19. Old Frenchpositif
20. Englishpositive
21. English todayelectropositive

From electro- + positive.