Etymograph

English

triphase

From tri- + phase.

A compound of tri- + phase

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

Proto-Italic *tri- ‘three, tri-’

English tri-

Proto-Indo-European *bʰeh₂- ‘to shine’

…

Proto-Hellenic *pʰáňňō ‘to appear’

Ancient Greek φαίνω ‘to bring to light; to appear’

Ancient Greek φάσις ‘appearance’

New Latin phasis

English phase

Today it means

adj Of, pertaining to, or having three phases.

Sources

Sources: Wiktionary, “triphase”. 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 / triphase

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