Where does “micropustule” come from?

micropustule (English) comes from English pustule, from Middle English pustule, from Old French pustule, from Latin pustula, from Finnish pus-, from Proto-Indo-European bew- — "low-pitch humming noise".

micropustule (English): A very tiny pustule

Definitions

  1. A very tiny pustule

Ancestry of “micropustule”, step by step

micropustule traces back through two separate lines of ancestry.

via English pustule

StepLanguageWordMeaning
1EnglishpustuleA small accumulation of pus in the epidermis or...
2Middle Englishpustule
3Old Frenchpustulepustule
4Latinpustulainflamed sore, blister, pustule
5Finnishpus-
6Proto-Indo-Europeanbew-"low-pitch humming noise"

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 bew-Every word from Finnish pus-Every word from Latin pustula