Where does “hypostomium” come from?

hypostomium (English) comes from English hypo, from English hypo-, from Ancient Greek ὑπό, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

hypostomium (English): The region immediately anterior of a stomium

Definitions

  1. The region immediately anterior of a stomium

Ancestry of “hypostomium”, step by step

hypostomium traces back through two separate lines of ancestry.

via English hypo

StepLanguageWordMeaning
1EnglishhypoMelancholy; a fit of ‘hypochondria’; a morbid...
2Englishhypo-Below; beneath; under; Deficient; less than...
3Ancient Greekὑπό
4Proto-Indo-Europeanupóunder, below
5Proto-Indo-Europeanh₃ewp-—

via English stomium

StepLanguageWordMeaning
1EnglishstomiumThe region of a sporangium where dehiscence takes...
2Ancient Greekστόμιονsmall mouth
3Ancient Greekστόμαmouth; face; The source of a river or stream
4Proto-Indo-Europeanstomn̥—
Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from English hypo- →