ablativus rei efficientis

== Latin == === Pronunciation === (Classical Latin) IPA(key): [ab.ɫaːˈtiː.wʊs ˈre.iː ɛf.fɪ.kiˈɛn.tɪs] (modern Italianate Ecclesiastical) IPA(key): [ab.laˈtiː.vus ˈrɛː.i ef.fi.t͡ʃiˈɛn.tis] === Noun === ablātīvus reī efficientis m (genitive ablātīvī reī efficientis); second declension (grammar) ablative of causing fact ==== Usage notes ==== A distinction is drawn by some Latin classicists between the ablātīvus īnstrūmentī, which is used to denote the cause in both active and passive sentences, and the ablātīvus reī efficientis, which is used in passive sentences and corresponds to the nominative representing an inanimate subject in active sentences. The ablātīvus reī efficientis is also distinguished from the ablātīvus auctōris, which corresponds to an animate subject in active sentences. The ablātīvus auctōris is used with the preposition ā (ab), but the ablātīvus reī efficientis is used without a preposition. For example: Animate subject and ablātīvus īnstrūmentī in an active sentence: Ablātīvus auctōris and ablātīvus īnstrūmentī in a passive sentence: Inanimate subject: Ablātīvus reī efficientis: ==== Declension ==== Second-declension noun with an indeclinable portion. === See also === ablātivus causae ablātivus īnstrūmentī ablātivus modī