Etymograph

English

deduct

Deduct comes from Latin deductus ‘having been led or escorted away’, from dēdūcō ‘lead from’, and ultimately from Proto-Indo-European *dewk- ‘to pull, to draw’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dewk-1‘to pull, to draw’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*déwkti1‘to pull, to draw’reconstructed
  3. Proto-Italicc. 1500–700 BCE*doukō1‘to lead’reconstructed
  4. Latinc. 75 BCE–200 CEdūcō1‘lead, pull’
  5. Latinc. 75 BCE–200 CEdēdūcō2as deducere‘lead from’
  6. Latinc. 75 BCE–200 CEdeductus2‘having been led or escorted away’
  7. Englishtodaydeduct2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin deduco
  2. 2 Wiktionary, English deduct

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dewk-Wiktionary, Latin deduco‘to pull, to draw’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*déwktiWiktionary, Latin deduco‘to pull, to draw’reconstructed
  3. Proto-Italicc. 1500–700 BCE*doukōWiktionary, Latin deduco‘to lead’reconstructed
  4. Latinc. 75 BCE–200 CEdūcōWiktionary, Latin deduco‘lead, pull’
  5. Latinc. 75 BCE–200 CEdēdūcōWiktionary, English deductas deducere‘lead from’
  6. Latinc. 75 BCE–200 CEdeductusWiktionary, English deduct‘having been led or escorted away’
  7. EnglishtodaydeductWiktionary, English deduct

Linked words

through Proto-Indo-European *dewk- ‘to pull, to draw’

team, touch, tie, toy, introduce, tow, tying, tighten, tug, duchess, tuck, herzog, tether, taut, untie, tew, teem, induct, 95 more

through Proto-Indo-European *déwkti ‘to pull, to draw’

unproductive, productively, preproduction, 94 more

through Proto-Italic *doukō ‘to lead’

producer, productive, productivity, reproduction, reproduce, conductor, byproduct, conduction, overproduction, abductor, dukedom, 97 more

through Latin dūcō ‘lead, pull’

education, production, produce, product, duke, introduction, reduce, conduct, dolphin, reduction, conn, educate, induction, douche, induce, doge, educator, conducive, subdue, cond, seduce, transducer, seduction, duchy, inductive, subduction, transduction, redux, redoubt, duc, abduct, reductive, dux, duce, ducal, ductile, inductor, adductor, adduct, 108 more

Today it means

verb To take one thing from another; remove from; make smaller or less by some amount.

Sources

Sources: Wiktionary, “deduct”; the older steps come from the Wiktionary entry for Latin deduco. 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 *dewk- / deduct

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