phosphosugar

The story

1. Proto-Indo-European*bʰeh₂-
2. Proto-Indo-European*bʰéh₂os
3. Proto-Hellenic*pʰáwos
4. Ancient Greekφᾰ́ος (phắos)
5. Ancient Greekφῶς (phôs)
6. Proto-Indo-European*bʰer-
7. Proto-Indo-European*bʰéreti
8. Proto-Hellenic*pʰérō
9. Ancient Greekφέρω (phérō)
10. Ancient Greekφωσφόρος (phōsphóros)
11. Latinphōsphorus
12. Englishphosphorus
13. Englishphospho-
14. Proto-Indo-European*ḱorkeh₂
15. Proto-Indo-Iranian*ćárkaraH
16. Proto-Indo-Aryan*śárkaraH
17. Sanskritशर्क॑रा (śárkarā)
18. Middle Persian𐭱𐭪𐭥 (šakar)
19. Arabicسُكَّر (sukkar)
20. Old Italianzucchero
21. Old Frenchçucre
22. Middle Englishsugre
23. Englishsugar
24. English todayphosphosugar

From phospho- + sugar.