Etymograph

English

deuce

Deuce comes from Middle English dewes ‘two’, and goes back to Proto-Indo-European *dwóh₁.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dwóh₁1‘two’reconstructed
  2. Proto-Italicc. 1500–700 BCE*duō1‘two’reconstructed
  3. Latinc. 75 BCE–200 CEduo2‘two’
  4. Old Frenchc. 842–1400deus2‘two’
  5. Middle Englishc. 1150–1500dewes2‘two’
  6. Englishearliest quotation 1934deuce2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin duo
  2. 2 Wiktionary, English deuce
  3. Earliest quotation in Wiktionary’s entry: 1934, Collier's: “Lend me a deuce until next week, will ya?”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dwóh₁Wiktionary, Latin duo‘two’reconstructed
  2. Proto-Italicc. 1500–700 BCE*duōWiktionary, Latin duo‘two’reconstructed
  3. Latinc. 75 BCE–200 CEduoWiktionary, English deuce‘two’
  4. Old Frenchc. 842–1400deusWiktionary, English deuce‘two’
  5. Middle Englishc. 1150–1500dewesWiktionary, English deuce‘two’
  6. Englishearliest quotation 1934deuceWiktionary, English deuce. Earliest quotation in Wiktionary’s entry: 1934, Collier's: “Lend me a deuce until next week, will ya?”

The story

The word was used by Ford Motor Co. in 1932 to describe a two-seater car model.

Full etymology on Wiktionary

Linked words

through Proto-Indo-European *dwóh₁ ‘two’

two, doubt, vice, twin, defeat, binary, vicious, diplomacy, twain, bis, disparate, twig, biceps, binocular, betwixt, 20 more

through Proto-Italic *duō ‘two’

duet, duality, 1 more

through Latin duo ‘two’

dual, duo, dubious, bes, 1 more

Another origin of deuce

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dyew-‘sky, heaven’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*deywós‘god’reconstructed
  3. Proto-Italicc. 1500–700 BCE*deiwos‘god, deity’reconstructed
  4. Old Latinc. 700–75 BCEdeivos
  5. Latinc. 75 BCE–200 CEdeus‘god, deity’
  6. Old Frenchc. 842–1400deus‘God’
  7. Englishtodaydeuce

Today it means

noun A card with two pips, one of four in a standard deck of playing cards.

Sources

Sources: Wiktionary, “deuce”; the older steps come from the Wiktionary entry for Latin duo. 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 *dwóh₁ / deuce

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