Where does “microdiaphragm” come from?

microdiaphragm (English) comes from English diaphragm, from Ancient Greek διάφραγμα, from Ancient Greek διά, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.

microdiaphragm (English): A very small diaphragm

Definitions

  1. A very small diaphragm

Ancestry of “microdiaphragm”, step by step

microdiaphragm traces back through two separate lines of ancestry.

via English diaphragm

StepLanguageWordMeaning
1EnglishdiaphragmIn mammals, a sheet of muscle separating the...
2Ancient Greekδιάφραγμαpartition or barrier; lock in a canal; diaphragm,...
3Ancient Greekδιάthroughout
4Proto-Indo-Europeandwístwice, doubly; in two
5Proto-Indo-Europeandwóh₁two

via English micro

StepLanguageWordMeaning
1EnglishmicroSmall, relatively small; short form of...
2Ancient Greekμικρόςlittle, small
3Proto-Indo-Europeanmēy-soft, tender, dear
Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Indo-European dwís →Every word from Ancient Greek διά →