Etymograph

English

pyroscope

From pyro- + -scope.

Formed from pyro + scope

Proto-Indo-European *péh₂wr̥ ‘fire’

Proto-Hellenic *pāwər

Ancient Greek πῦρ ‘fire’

English pyro

Proto-Indo-European *speḱ- ‘to see, to look, to observe’

…

Ancient Greek σκέπτομαι ‘to look at, examine’

Ancient Greek σκοπός ‘watcher, lookout’

Late Latin scopus

Italian scopo ‘purpose’

English scope

Today it means

noun An early form of pyrometer used to measure high temperatures.

Sources

Sources: Wiktionary, “pyroscope”. 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 / pyroscope

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