Etymograph

English

prolateral

From pro- + lateral.

Formed from pro- + lateral

Proto-Indo-European *pér ‘through’

Proto-Indo-European *pró ‘forwards, before’

Proto-Italic *prō ‘in front of, before’

Latin prō ‘in favor of, on behalf of’

English pro-

Latin latus ‘the side or flank’

Latin laterālis ‘belonging to the side’

English lateral

Today it means

adj Projecting from a forward-facing side

Sources

Sources: Wiktionary, “prolateral”. 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 / prolateral

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