efficaciter

Latin

Etymology

efficāx (“efficacious, effectual, powerful, efficient”) +‎ -ter

Adverb

efficāciter (comparative efficācius, superlative efficācissimē)

1. efficaciously, effectually

References

• “efficaciter”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “efficaciter”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• efficaciter in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.