Etymograph

English

triunion

tri- + union

Formed from tri- + union

Proto-Indo-European *tri- ‘three, threefold’

Proto-Italic *tri- ‘three, tri-’

English tri-

Proto-Indo-European *h₁óynos ‘one’

…

Latin ūnus ‘one’

Late Latin ūniō ‘oneness’

Old French union

Middle English unyoun

English union

Today it means

noun A union of three things.

Sources

Sources: Wiktionary, “triunion”. 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 / triunion

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