Etymograph

English

uncle

Uncle comes from Middle English uncle, from Anglo-Norman uncle, from Vulgar Latin *aunclum, from Latin avunculus ‘maternal uncle’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂éwh₂os1‘grandfather’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*h₂euh₂-n-tlo-1‘little grandfather’reconstructed
  3. Latinc. 75 BCE–200 CEavunculus1‘maternal uncle’literally ‘little grandfather’
  4. Vulgar Latinc. 100–700 CE*aunclum2reconstructed
  5. Anglo-Normanc. 1066–1400uncle1
  6. Middle Englishc. 1150–1500uncle1
  7. Englishearliest quotation 1850uncle1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English uncle
  2. 2 Wiktionary, Old French uncle
  3. Earliest quotation in Wiktionary’s entry: 1850, Ralph Waldo Emerson: “Plain old uncle as he [Socrates] was, with his…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂éwh₂osWiktionary, English uncle‘grandfather’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*h₂euh₂-n-tlo-Wiktionary, English uncle‘little grandfather’reconstructed
  3. Latinc. 75 BCE–200 CEavunculusWiktionary, English uncle‘maternal uncle’literally ‘little grandfather’
  4. Vulgar Latinc. 100–700 CE*aunclumWiktionary, Old French unclereconstructed
  5. Anglo-Normanc. 1066–1400uncleWiktionary, English uncle
  6. Middle Englishc. 1150–1500uncleWiktionary, English uncle
  7. Englishearliest quotation 1850uncleWiktionary, English uncle. Earliest quotation in Wiktionary’s entry: 1850, Ralph Waldo Emerson: “Plain old uncle as he [Socrates] was, with his…”

The story

From Middle English uncle, borrowed from Anglo-Norman uncle and Old French oncle, from Vulgar Latin *aunclum, from Latin avunculus (“maternal uncle”, literally “little grandfather”), from Proto-Indo-European *h₂euh₂-n-tlo- (‘little grandfather’), a dialectal diminutive of *h₂éwh₂ō (‘grandfather, adult male relative other than one’s father’) (whence also Latin avus (‘grandfather’)).

Full etymology on Wiktionary

Linked words

through Proto-Indo-European *h₂éwh₂os ‘maternal grandfather’

eam, ayah, abuela, 8 more

Today it means

noun The brother or brother-in-law of one’s parent.

Sources

Sources: Wiktionary, “uncle”; the older steps come from the Wiktionary entry for Old French uncle. 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 *h₂éwh₂os / uncle

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