Etymograph

English

suprathermal

From supra- + thermal.

A compound of supra- + thermal

Proto-Indo-European *úp

…

Proto-Italic *superos ‘upper’

Proto-Italic *superād ‘above’

Old Latin suprād

Latin suprā ‘above, on the top, on the upper side’

English supra-

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

Ancient Greek θέρμη ‘heat’

New Latin *thermalis

French thermal

English thermal

Today it means

adj Having an energy greater than that associated with a comparable entity generated by thermal excitation

Sources

Sources: Wiktionary, “suprathermal”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / suprathermal

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