Where does “heptahydride” come from?

heptahydride (English) comes from English hydride, from English -ide, from Middle French -ide, from Latin -is, from Latin -a, from Proto-Italic -ā, from Proto-Indo-European -éh₂.

heptahydride (English): Any hydride containing seven atoms of hydrogen per molecule

Definitions

  1. Any hydride containing seven atoms of hydrogen per molecule

Ancestry of “heptahydride”, step by step

heptahydride traces back through two separate lines of ancestry.

via English hydride

StepLanguageWordMeaning
1EnglishhydrideA compound of hydrogen with a more...
2English-ideAny of a group of related compounds - azide,...
3Middle French-ideid (dynast)
4Latin-issuffixed to the root of nouns in composition,...
5Latin-asuffixed to the roots of verbs, forms agent...
6Proto-ItalicForms masculine agent nouns from prefixed or compounded bases
7Proto-Indo-European-éh₂

via English hepta

StepLanguageWordMeaning
1Englishheptaseven
Every word from Proto-Indo-European -éh₂Every word from Latin -isEvery word from Latin -a