effectivus

Latin

Etymology

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 *-wós

Proto-Indo-European *-iHwósder.

Latin -īvus

Latin effectīvus

From efficiō (“to produce”) + -īvus.

Pronunciation

• (Classical Latin) IPA^(key): [ɛf.fɛkˈtiː.wʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [ef.fekˈtiː.vus]

Adjective

effectīvus (feminine effectīva, neuter effectīvum); first/second-declension adjective

1. creative
2. productive, effective

Declension

First/second-declension adjective.

	singular				plural
	masculine	feminine	neuter		masculine	feminine	neuter
nominative	effectīvus	effectīva	effectīvum		effectīvī	effectīvae	effectīva
genitive	effectīvī	effectīvae	effectīvī		effectīvōrum	effectīvārum	effectīvōrum
dative	effectīvō	effectīvae	effectīvō		effectīvīs
accusative	effectīvum	effectīvam	effectīvum		effectīvōs	effectīvās	effectīva
ablative	effectīvō	effectīvā	effectīvō		effectīvīs
vocative	effectīve	effectīva	effectīvum		effectīvī	effectīvae	effectīva

Descendants

• → Catalan: efectiu
• → Dutch: effectief
• → German: effektiv
• → English: effective
• → French: effectif
• → Galician: efectivo
• → Italian: effettivo
• → Piedmontese: efetiv
• → Portuguese: efetivo
• → Romanian: efectiv
• → Spanish: efectivo

References

• “effectivus”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• "effectivus", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “effectivus”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.