Etymograph

English

trilateral

Trilateral comes from New Latin trilaterālis.

  1. New Latinc. 1500–1900trilaterālis
  2. Englishearliest quotation 2020trilateral

attested reconstructed ? uncertain or disputed

Lineage

  1. New Latinc. 1500–1900trilaterālis
  2. Englishearliest quotation 2020trilateral

Earliest quotation: 2020, Network News: Shapps: Network Rail puts spare capacity to us: “Meanwhile, a trilateral agreement has been signed with the…”

Formed from tri- + lateral

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

Proto-Italic *tri- ‘three, tri-’

English tri-

Latin latus ‘the side or flank’

Latin laterālis ‘belonging to the side’

English lateral

Every English word from New Latin trilaterālis

Today it means

adj Having three sides

Language periods are conventional ranges, not dates for this word.

Etymograph / New Latin trilaterālis / trilateral

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