Etymograph

English

Triassic

Triassic comes from German Trias ‘trinity, triad’, and goes back to Ancient Greek τριάς.

  1. Ancient Greekc. 800–300 BCEτριάςtriás‘triad’
  2. Germanc. 1650–presentTrias‘trinity, triad’
  3. English1500–presentsame form‘three-layered geologic strata between the Permian and Jurassic’
  4. Englishearliest quotation 1990Triassic

attested reconstructed ? uncertain or disputed

Lineage

  1. Ancient Greekc. 800–300 BCEτριάςtriás‘triad’
  2. Germanc. 1650–presentTrias‘trinity, triad’
  3. English1500–presentsame form‘three-layered geologic strata between the Permian and Jurassic’
  4. Englishearliest quotation 1990Triassic

Earliest quotation: 1990, Michael Crichton, Jurassic Park: “Well,” Ellie said. “We know animals have survived. Crocodiles…”

Formed from -ic

The story

Coined in 1841 by geologist Friedrich August von Alberti (1795–1878).

Today it means

adj Of or from the geologic strata above the Permian and below the Jurassic; of or belonging to the period 250 to 200 million years ago when these strata were laid down.

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

Etymograph / Ancient Greek τριάς / Triassic