Where does “heptacosanoic” come from?

heptacosanoic (English) comes from English heptacosane, from English -cosa-, from English icosa-, from Ancient Greek εἴκοσι, from Proto-Hellenic ewīkəti, from Proto-Indo-European wídḱm̥ti, from Proto-Indo-European dwidḱómt, from Proto-Indo-European déḱm̥t — ten.

heptacosanoic (English): Of or pertaining to heptacosanoic acid or its...

Definitions

  1. Of or pertaining to heptacosanoic acid or its...

Ancestry of “heptacosanoic”, step by step

heptacosanoic traces back through two separate lines of ancestry.

via English heptacosane

StepLanguageWordMeaning
1EnglishheptacosaneAny of very many isomers of the saturated...
2English-cosa-
3Englishicosa-API; twenty
4Ancient Greekεἴκοσιtwenty
5Proto-Hellenicewīkəti
6Proto-Indo-Europeanwídḱm̥titwenty
7Proto-Indo-Europeandwidḱómt
8Proto-Indo-Europeandéḱm̥tten

via English OIC

StepLanguageWordMeaning
1EnglishOICAbbreviation of officer in the case; Abbreviation...
Every word from Proto-Indo-European déḱm̥tEvery word from Proto-Indo-European dwidḱómtEvery word from Proto-Indo-European wídḱm̥ti