Where does “heptacosadiene” come from?

heptacosadiene (English) comes 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.

heptacosadiene (English): Any of very many isomeric dialkenes having twenty-seven carbon atoms and two double bonds, but especially (Z,Z) 7,11-heptacosadiene which is a courtship pheromone in fruit flies

Definitions

  1. Any of very many isomeric dialkenes having twenty-seven carbon atoms and two double bonds, but especially (Z,Z) 7,11-heptacosadiene which is a courtship pheromone in fruit flies

Ancestry of “heptacosadiene”, step by step

StepLanguageWordMeaning
1English-cosa-—
2Englishicosa-API; twenty
3Ancient Greekεἴκοσιtwenty
4Proto-Hellenicewīkəti—
5Proto-Indo-Europeanwídḱm̥titwenty
6Proto-Indo-Europeandwidḱómt—
7Proto-Indo-Europeandéḱm̥tten
Every word from Proto-Indo-European déḱm̥t →Every word from Proto-Indo-European dwidḱómt →Every word from Proto-Indo-European wídḱm̥ti →