Where does “synthermal” come from?

synthermal (English) comes from English syn, from English synonym, from Middle English sinonyme, from Latin synōnymum, from Ancient Greek συνώνυμος, from Ancient Greek σῠν-, from Ancient Greek σύν, from Proto-Hellenic *ksún — beside, with.

synthermal (English): Having the same degree of heat

Definitions

  1. Having the same degree of heat

Ancestry of “synthermal”, step by step

synthermal traces back through two separate lines of ancestry.

via English syn

StepLanguageWordMeaning
1EnglishsynThat has a torsion angle between 0° and 90°
2EnglishsynonymA word whose meaning is the same as that of...
3Middle Englishsinonyme
4Latinsynōnymumsynonym
5Ancient GreekσυνώνυμοςHaving the same name; Having only one meaning:...
6Ancient Greekσῠν-together; with, together
7Ancient Greekσύνbeside, with
8Proto-Hellenic*ksúnbeside, with

via English thermal

StepLanguageWordMeaning
1EnglishthermalA column of rising air in the lower atmosphere...
2Frenchthermalthermal
3New Latinthermalis
4Ancient GreekΘέρμηTherma, Macedonia, Greece
5Proto-Indo-Europeangʷʰer-warm, hot
6Proto-Indo-Europeangʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr
Every word from Proto-Hellenic *ksúnEvery word from Ancient Greek σῠν-Every word from Ancient Greek σύν