English
superthermal
From super- + thermal.
Proto-Indo-European *gʷʰer- ‘to heat, warm’
Ancient Greek θέρμη ‘heat’
New Latin *thermalis
French thermal
English thermal
Today it means
adj Describing any particle or system whose energy is greater than that of its thermal component
Language periods are conventional ranges, not dates for this word.
Etymograph / superthermal