efficax
Latin
Etymology
From efficiō (“I make out, work out”) + -āx (“inclined to”).
Pronunciation
- (Classical) IPA(key): /ˈef.fi.kaːks/, [ˈɛfːɪkäːks̠]
- (Ecclesiastical) IPA(key): /ˈef.fi.kaks/, [ˈɛfːikäks]
Adjective
efficāx (genitive efficācis, adverb efficāciter); third-declension one-termination adjective
- efficacious, effectual, powerful, efficient
Declension
Third-declension one-termination adjective.
| Number | Singular | Plural | |||
|---|---|---|---|---|---|
| Case / Gender | Masc./Fem. | Neuter | Masc./Fem. | Neuter | |
| Nominative | efficāx | efficācēs | efficācia | ||
| Genitive | efficācis | efficācium | |||
| Dative | efficācī | efficācibus | |||
| Accusative | efficācem | efficāx | efficācēs | efficācia | |
| Ablative | efficācī | efficācibus | |||
| Vocative | efficāx | efficācēs | efficācia | ||
Derived terms
- efficāciter
Descendants
- →⇒ English: efficacious
- → French: efficace
- → Italian: efficace
- → Spanish: eficaz
References
- “efficax”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
- “efficax”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
- efficax in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
- efficax in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette