Where does “efektive” come from?
efektive (Esperanto) comes from Esperanto efektiva, from Latin effectīvus, from Latin efficiō, from Latin ex, from Latin commūnicō, from Latin commūnis, from Old Latin com(m)oinis, from Proto-Italic kommoinis — resin, gum; to say, speak.
efektive (Esperanto): in fact, actually
Ancestry of “efektive”, step by step