monoester

The story

1. Proto-Indo-European*men-
2. Proto-Hellenic*mónwos
3. Ancient Greekμόνος (mónos)
4. Ancient Greekμονο- (mono-)
5. Englishmono-
6. Proto-Indo-European*h₂eḱ-
7. Proto-Indo-European*h₂eḱéh₁yeti
8. Proto-Italic*akēō
9. Latinaceō
10. Latinacēscō
11. Latinacētum
12. Proto-West Germanic*aket
13. Proto-West Germanic*atek
14. Old High Germaneȥȥih
15. Middle High Germaneȥȥich
16. GermanEssich
17. GermanEssig
18. Proto-Indo-European*h₂eydʰ-
19. Proto-Hellenic*áitʰō
20. Ancient Greekαἴθω (aíthō)
21. Ancient Greekᾱ̓ήρ (āḗr)influ.?
22. Ancient Greekαἰθήρ (aithḗr)
23. Latinaethēr
24. GermanÄther
25. GermanEster
26. Englishester
27. English todaymonoester

From mono- + ester.