Meaning

noun a phenomenon that follows and is caused by some previous phenomenon

noun an outward appearance

noun an impression (especially one that is artificial or contrived)

originEtymology tree Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Italic *eks Latin ex Latin ef- 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 *-tus Proto-Italic *-tus Latin -tus Latin effectuslbor. Old French effectbor. Middle English…

Etymology from Wiktionary, CC BY-SA 3.0