English

stenothermal

From steno- + thermal.

Ancient Greek στενός ‘narrow’

Proto-Indo-European *gʷʰer- ‘to heat, warm’

Ancient Greek θέρμη ‘heat’

New Latin *thermalis

French thermal

Today it means

adj Able to tolerate only a narrow range of temperatures.

Language periods are conventional ranges, not dates for this word.

Etymograph / stenothermal