English Explanatory Dictionary

effectiveness

English dictionary entry

Meanings

noun
  1. The property of being effective, of achieving results.
  2. The capacity or potential for achieving results.
  3. The degree to which something achieves results.

Pronunciation

/ɪˈfɛk.tɪv.nɪs/ en-us-effectiveness.ogg /əˈfɛk.tɪv.nəs/

Word forms

effectiveness effectivenesses

Etymology

Etymology tree Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Italic *eks Latin ex Latin ef- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰeh₁k- Proto-Indo-European *-yéti Proto-Indo-European *dʰh₁kyéti Proto-Italic *θakjō Proto-Italic *fakjō Latin faciō Latin efficiō Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Latin effectīvusbor. French effectifder. English effective Proto-Germanic *-in- Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂ti Proto-Germanic *-ōną Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English effectiveness From effective + -ness.

Related words

effect effective effectivity effector effectual effectuate efficacious efficacity efficacy efficiency efficient

Derived words

bioeffectiveness cost-effectiveness
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