Etymograph

English

aforethought

Aforethought comes from Middle English thought ‘product of mental activity’, from Old English þōht ‘thought’, and ultimately from Proto-Indo-European *teng- ‘to think’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*teng-1‘to think’reconstructed
  2. Proto-Germanicc. 500 BCE–200 CE*þankijaną1‘to perceive, to think’reconstructed
  3. Proto-Germanicc. 500 BCE–200 CE*þanhtaz1‘thought, idea’reconstructed
  4. Proto-West Germanicc. 200–500 CE*þą̄ht1reconstructed
  5. Old Englishc. 450–1150þōht1‘thought’
  6. Middle Englishc. 1150–1500thought1‘product of mental activity’
  7. English1500–presentthought1
  8. Englishtodayaforethought1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English aforethought

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*teng-Wiktionary, English aforethought‘to think’reconstructed
  2. Proto-Germanicc. 500 BCE–200 CE*þankijanąWiktionary, English aforethought‘to perceive, to think’reconstructed
  3. Proto-Germanicc. 500 BCE–200 CE*þanhtazWiktionary, English aforethought‘thought, idea’reconstructed
  4. Proto-West Germanicc. 200–500 CE*þą̄htWiktionary, English aforethoughtreconstructed
  5. Old Englishc. 450–1150þōhtWiktionary, English aforethought‘thought’
  6. Middle Englishc. 1150–1500thoughtWiktionary, English aforethought‘product of mental activity’
  7. English1500–presentthoughtWiktionary, English aforethought
  8. EnglishtodayaforethoughtWiktionary, English aforethought

Linked words

through Proto-Indo-European *teng- ‘to think’

thank, thinking, tent, dunk, tinge, methinks, tincture, 18 more

through Proto-Germanic *þankijaną ‘to perceive, to think’

think, 10 more

through Middle English thought ‘product of mental activity’

thot, 3 more

through English thought

thoughtless, 2 more

Today it means

adj Premeditated; planned ahead of time.

Sources

Sources: Wiktionary, “aforethought”. 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 *teng- / aforethought

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