adjective/efiˈkaθ/
efficacious; effective
Synonyms: efectivo
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 *-eh₂-k-s Proto-Italic *-āks Latin -āx Latin efficācembor. Spanish eficaz Borrowed from Latin efficācem.