Etymograph

English

thank

Thank comes from Middle English thanken ‘to express gratitude, give thanks’, from Proto-Germanic *þankaz ‘thought’, and ultimately from Proto-Indo-European *tóng-o-s.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*tóng-o-sreconstructed
  2. Proto-Germanicc. 500 BCE–200 CE*þankaz‘thought’reconstructed
  3. Proto-Germanic, derivedc. 500 BCE–200 CE*þankōną‘to thank’reconstructed
  4. Proto-West Germanicc. 200–500 CE*þankōn‘to thank’reconstructed
  5. Old Englishc. 450–1150þancian‘to thank’
  6. Middle Englishc. 1150–1500thanken‘to express gratitude’
  7. Englishearliest quotation 1564thank

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*tóng-o-sreconstructed
  2. Proto-Germanicc. 500 BCE–200 CE*þankaz‘thought’reconstructed
  3. Proto-Germanic, derivedc. 500 BCE–200 CE*þankōną‘to thank’reconstructed
  4. Proto-West Germanicc. 200–500 CE*þankōn‘to thank’reconstructed
  5. Old Englishc. 450–1150þancian‘to thank’
  6. Middle Englishc. 1150–1500thanken‘to express gratitude’
  7. Englishearliest quotation 1564thank

Earliest quotation: 1564, Erasmus, The Saiynges of Diogenes the Cynike: “[H]aſt thou no ſhame to deſpiſe that perſone, to…”

Today it means

verb To express appreciation or gratitude toward (someone or something).

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

Etymograph / Proto-Indo-European *tóng-o-s / thank