Where does “microhole” come from?

microhole (English) comes from English hole, from Middle English hole, from Old English hol, from Proto-West Germanic hol, from Proto-Germanic hulą, from Proto-Germanic hulaz, from Proto-Indo-European ḱel- — to cover; to incline.

microhole (English): A microscopic hole

Definitions

  1. A microscopic hole

Ancestry of “microhole”, step by step

microhole traces back through two separate lines of ancestry.

via English hole

StepLanguageWordMeaning
1EnglishholeA hollow place or cavity; an excavation; a pit;...
2Middle Englishholehealthy; safe; whole, complete, full
3Old Englishhola hole, a hollow; calumny; slander
4Proto-West Germanicholhollow; hole
5Proto-Germanichuląa hollow; depression; hole
6Proto-Germanichulazhollow
7Proto-Indo-Europeanḱel-to cover; to incline

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 ḱel-Every word from Proto-Germanic hulazEvery word from Proto-Germanic hulą