Where does “microthermic” come from?

microthermic (English) comes from English micro, from Ancient Greek μικρός, from Proto-Indo-European mēy- — soft, tender, dear.

microthermic (English): Relating to microtherms

Definitions

  1. Relating to microtherms

Ancestry of “microthermic”, step by step

microthermic traces back through two separate lines of ancestry.

via English micro

StepLanguageWordMeaning
1EnglishmicroSmall, relatively small; short form of...
2Ancient Greekμικρόςlittle, small
3Proto-Indo-Europeanmēy-soft, tender, dear

via English thermic

StepLanguageWordMeaning
1EnglishthermicOf, related to, or associated with heat; thermal
Every word from Proto-Indo-European mēy-Every word from Ancient Greek μικρόςEvery word from English micro