Where does “microdrill” come from?

microdrill (English) comes from English drill, from Middle Dutch drillen, from Old Dutch thrillen, from Proto-Germanic þriljaną, from Proto-Indo-European ter-, from Italian termine, from Latin terminus, from Proto-Italic termenos — boundary, end.

microdrill (English): A microscopic drill

Definitions

  1. A microscopic drill

Ancestry of “microdrill”, step by step

microdrill traces back through two separate lines of ancestry.

via English drill

StepLanguageWordMeaning
1EnglishdrillTo create by removing material with a drill; To...
2Middle Dutchdrillenbore, move in a circle
3Old Dutchthrillen
4Proto-Germanicþriljaną
5Proto-Indo-Europeanter-tender, weak; young creature
6Italiantermineend, close; limit, term, date, time; term, word
7Latinterminusa boundary, limit, end
8Proto-Italictermenos
9Proto-Indo-Europeantérmn̥boundary, end

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 térmn̥