Etymograph

English

uneffective

Uneffective comes from French effectif ‘number of members of a group’, from Latin effectīvus ‘creative’, and ultimately from Proto-Indo-European *dʰeh₁k-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dʰeh₁k-1reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*dʰh₁kyéti1reconstructed
  3. Proto-Italicc. 1500–700 BCE*θakjō1reconstructed
  4. Proto-Italicc. 1500–700 BCE*fakjō1‘to make’reconstructed
  5. Latinc. 75 BCE–200 CEfaciō1‘to make, construct, fashion, frame, build, erect’
  6. Latinc. 75 BCE–200 CEefficiō1‘to make out or work out’
  7. Latinc. 75 BCE–200 CEeffectīvus1‘creative’
  8. Frenchc. 1600–presenteffectif1‘number of members of a group’
  9. English1500–presenteffective1
  10. Englishearliest quotation 1942uneffective1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English uneffective
  2. Earliest quotation in Wiktionary’s entry: 1942, Foreign Relations of the United States, United States: Department of State: “The usual formal protest which I am making will…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dʰeh₁k-Wiktionary, English uneffectivereconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*dʰh₁kyétiWiktionary, English uneffectivereconstructed
  3. Proto-Italicc. 1500–700 BCE*θakjōWiktionary, English uneffectivereconstructed
  4. Proto-Italicc. 1500–700 BCE*fakjōWiktionary, English uneffective‘to make’reconstructed
  5. Latinc. 75 BCE–200 CEfaciōWiktionary, English uneffective‘to make, construct, fashion, frame, build, erect’
  6. Latinc. 75 BCE–200 CEefficiōWiktionary, English uneffective‘to make out or work out’
  7. Latinc. 75 BCE–200 CEeffectīvusWiktionary, English uneffective‘creative’
  8. Frenchc. 1600–presenteffectifWiktionary, English uneffective‘number of members of a group’
  9. English1500–presenteffectiveWiktionary, English uneffective
  10. Englishearliest quotation 1942uneffectiveWiktionary, English uneffective. Earliest quotation in Wiktionary’s entry: 1942, Foreign Relations of the United States, United States: Department of State: “The usual formal protest which I am making will…”

A compound of un- + effective

Proto-Indo-European *n̥- ‘not, un-’

Proto-Germanic *un- ‘not, un-’

Proto-West Germanic *un- ‘not, un-’

English un-

Latin efficiō ‘to make; bring about’

Latin effectīvus ‘productive; effective’

French effectif ‘effective’

English effective

Linked words

through Proto-Italic *θakjō

affectionate, imperfection, putrefaction, 62 more

through Proto-Italic *fakjō ‘to make’

factor, difficulty, interface, manufacture, faction, perfection, affection, facet, imperfect, defection, deface, affective, defector, confectionary, affectation, 65 more

through Latin faciō ‘to make, construct, fashion, frame, build, erect’

face, fact, difficult, perfect, profit, feature, facility, faculty, sacrifice, affair, facial, facilitate, affect, deficit, feat, infection, superficial, facade, fetish, deficient, counterfeit, defect, facsimile, infect, hacienda, maleficent, aficionado, parfait, facies, beautify, confit, difficile, confection, beneficent, effector, refectory, 80 more

through Latin efficiō ‘to make out or work out’

effect, efficient, efficacy, efficacious, 14 more

through English effective

effectively, effectiveness, ineffective, 10 more

Today it means

adj Synonym of ineffective.

Sources

Sources: Wiktionary, “uneffective”. 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 *dʰeh₁k- / uneffective

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