Etymograph

English

horizontal

Horizontal comes from Latin horizōn, and goes back to Ancient Greek ὁρίζων ‘horizon’.

  1. Ancient Greekc. 800–300 BCEὁρίζων‘horizon’
  2. Latinc. 75 BCE–200 CEhorizōn
  3. Middle Frenchc. 1400–1600horizontal
  4. Englishearliest quotation 1667same form

attested reconstructed ? uncertain or disputed

Lineage

  1. Ancient Greekc. 800–300 BCEὁρίζων‘horizon’
  2. Latinc. 75 BCE–200 CEhorizōn
  3. Middle Frenchc. 1400–1600horizontal
  4. Englishearliest quotation 1667same form

Earliest quotation: 1667, John Milton, Book I: “As when the Sun new ris'n / Looks through…”

Today it means

adj Perpendicular to the vertical; parallel to the plane of the horizon; level, flat.

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

Etymograph / Ancient Greek ὁρίζων / horizontal