Etymograph

English

indefatigable

Indefatigable comes from Latin indēfatīgābilis ‘untiring’, from dēfatīgō ‘to tire out’, and ultimately from fatīgō.

  1. Latinc. 75 BCE–200 CEfatīgō‘to fatigue, tire or weary’
  2. Latin, derivedc. 75 BCE–200 CEdēfatīgō‘to tire out’
  3. Latin, derivedc. 75 BCE–200 CEindēfatīgābilis‘untiring’
  4. Englishearliest quotation 1749indefatigable

attested reconstructed ? uncertain or disputed

Lineage

  1. Latinc. 75 BCE–200 CEfatīgō‘to fatigue, tire or weary’
  2. Latin, derivedc. 75 BCE–200 CEdēfatīgō‘to tire out’
  3. Latin, derivedc. 75 BCE–200 CEindēfatīgābilis‘untiring’
  4. Englishearliest quotation 1749indefatigable

Earliest quotation: 1749, Henry Fielding, Containing Two Letters in Very Different Stiles: “[...] But he was at the ſame Time an…”

Linked words

through Latin fatīgō ‘to fatigue, tire or weary’

fatigue, 2 more

Today it means

adj Extremely persistent and untiring.

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

Etymograph / Latin fatīgō / indefatigable

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