Etymograph

English

quad-

Quad- comes from Latin quattuor ‘four’, and goes back to Proto-Indo-European *kʷetwṓr.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*kʷetwṓrreconstructed
  2. Proto-Italicc. 1500–700 BCE*kʷettwōr‘four’reconstructed
  3. Latinc. 75 BCE–200 CEquattuor‘four’
  4. Englishtodayquad-

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*kʷetwṓrreconstructed
  2. Proto-Italicc. 1500–700 BCE*kʷettwōr‘four’reconstructed
  3. Latinc. 75 BCE–200 CEquattuor‘four’
  4. Englishtodayquad-

The story

Reduced form of quadri-, from Latin quattuor (‘four’).

Linked words

through Proto-Indo-European *kʷetwṓr

four, 28 more

through Proto-Italic *kʷettwōr ‘four’

squadron, 25 more

through Latin quattuor ‘four’

square, squad, cater, quarry, cadre, quadrant, quadruple, quadratic, cuatro, quatre, quatrain, quadra, 26 more

Today it means

prefix Involving four elements.

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

Etymograph / Proto-Indo-European *kʷetwṓr / quad-

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