Etymograph

English

retrospectroscope

Jocular blend of retrospect + spectroscope; compare the etymology of retrospectoscope.

A blend of retrospect + spectroscope

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

…

Proto-Italic *spekjō ‘to observe, see’

Latin speciō ‘look’

Latin retrōspicio ‘to look back at’

Latin retrōspectum

English retrospect

The story

Jocular blend of retrospect + spectroscope; compare the etymology of retrospectoscope.

Full etymology on Wiktionary

Today it means

noun Synonym of retrospectoscope.

Sources

Sources: Wiktionary, “retrospectroscope”. 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 / retrospectroscope