Where does “macrothermic” come from?

macrothermic (English) comes from English macro, from English macro-, from French macro-, from Latin macro-, from Ancient Greek μακρός, from Proto-Italic makros, from Proto-Indo-European mh₂ḱrós, from Proto-Indo-European meh₂ḱ- — to raise, increase; long.

Ancestry of “macrothermic”, step by step

macrothermic traces back through two separate lines of ancestry.

via English macro

StepLanguageWordMeaning
1EnglishmacroVery large in scope or scale; Clipping of...
2Englishmacro-large; long; inclusive
3Frenchmacro-macro
4Latinmacro-large
5Ancient Greekμακρόςlong; tall, deep; far, distant
6Proto-Italicmakros
7Proto-Indo-Europeanmh₂ḱróslean, meager
8Proto-Indo-Europeanmeh₂ḱ-to raise, increase; long

via English thermic

StepLanguageWordMeaning
1EnglishthermicOf, related to, or associated with heat; thermal
Every word from Proto-Indo-European meh₂ḱ-Every word from English macro-Every word from English macro
macrothermic — Etymology, Origin & Word History | Etymology Explorer