Etymograph

English

triforium

Triforium comes from Medieval Latin triforium, from trēs ‘three’, and ultimately from Proto-Indo-European *tréyes.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*tréyes1‘three’reconstructed
  2. Proto-Italicc. 1500–700 BCE*trejes1reconstructed
  3. Proto-Italicc. 1500–700 BCE*trēs1‘three’reconstructed
  4. Medieval Latinc. 600–1500trēs2as tria‘three’
  5. Medieval Latinc. 600–1500triforium2
  6. Englishtodaytriforium2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin tres
  2. 2 Wiktionary, English triforium

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*tréyesWiktionary, Latin tres‘three’reconstructed
  2. Proto-Italicc. 1500–700 BCE*trejesWiktionary, Latin tresreconstructed
  3. Proto-Italicc. 1500–700 BCE*trēsWiktionary, Latin tres‘three’reconstructed
  4. Medieval Latinc. 600–1500trēsWiktionary, English triforiumas tria‘three’
  5. Medieval Latinc. 600–1500triforiumWiktionary, English triforium
  6. EnglishtodaytriforiumWiktionary, English triforium

Linked words

through Proto-Indo-European *tréyes ‘three’

three, tri, tern, troika, 10 more

through Medieval Latin trēs ‘three’

distribution, contribute, tribute, tribe, tribal, tribunal, trinity, trio, tribune, trey, tres, triplex, 8 more

Today it means

noun The gallery of arches above the side-aisle vaulting in the nave of a church.

Sources

Sources: Wiktionary, “triforium”; the older steps come from the Wiktionary entry for Latin tres. 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 / Proto-Indo-European *tréyes / triforium

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