English
deduction
Deduction comes from Latin deductio ‘drawing, draining or leading off or forth’, from dēdūcō ‘to lead or bring out or away, divert’, and ultimately from Proto-Indo-European *dewk- ‘to pull, to draw’.
- Proto-Indo-Europeanc. 4500–2500 BCE*dewk-‘to pull, to draw’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*déwkti‘to pull, to draw’reconstructed
- Proto-Italicc. 1500–700 BCE*doukō‘to lead’reconstructed
- Latinc. 75 BCE–200 CEdūcō‘lead, pull’
- Latin, derivedc. 75 BCE–200 CEdēdūcō‘to lead or bring out or away, divert’
- Latin, derivedc. 75 BCE–200 CEdeductio‘drawing, draining or leading off or forth’
- Middle Frenchc. 1400–1600déduction
- Englishearliest quotation 1961deduction
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*dewk-‘to pull, to draw’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*déwkti‘to pull, to draw’reconstructed
- Proto-Italicc. 1500–700 BCE*doukō‘to lead’reconstructed
- Latinc. 75 BCE–200 CEdūcō‘lead, pull’
- Latin, derivedc. 75 BCE–200 CEdēdūcō‘to lead or bring out or away, divert’
- Latin, derivedc. 75 BCE–200 CEdeductio‘drawing, draining or leading off or forth’
- Middle Frenchc. 1400–1600déduction
- Englishearliest quotation 1961deduction
Earliest quotation: 1961, Talking of Trains: Marples out of step: “An unkinder deduction, considering only the Select Committee's report…”
Formed from deduct + -ion
Proto-Indo-European *dewk- ‘to pull, to draw’
…
Proto-Italic *doukō ‘to lead’
Latin dūcō ‘lead, pull’
Latin dēdūcō ‘lead from’
Latin deductus ‘having been led or escorted away’
English deduct
Linked words
through Proto-Indo-European *dewk- ‘to pull, to draw’
team, touch, toy, tie, introduce, tow, tying, tug, duchess, tighten, tuck, herzog, tether, taut, tew, untie, teem, induct, preproduction, 94 more
through Proto-Indo-European *déwkti ‘to pull, to draw’
reproduction, unproductive, productively, abductor, overproduction, 94 more
through Proto-Italic *doukō ‘to lead’
production, producer, productive, productivity, reproduce, conductor, induction, byproduct, inductive, abduct, seduction, conduction, reductive, subduction, transduction, inductor, adductor, dukedom, ductile, adduct, 99 more
through Latin dūcō ‘lead, pull’
produce, product, education, duke, reduce, conduct, introduction, dolphin, educate, reduction, induce, douche, conn, educator, doge, duct, subdue, conducive, seduce, duchy, transducer, cond, redux, duc, redoubt, dux, duce, ducal, 119 more
Today it means
noun That which is deducted; that which is subtracted or removed.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *dewk- / deduction