Kastorus

== Latin == === Pronunciation === (Classical Latin) IPA(key): [ˈkas.tɔ.rʊs] (modern Italianate Ecclesiastical) IPA(key): [ˈkas.to.rus] === Noun === Kastorus (Old Latin, rare) genitive singular of Castor ==== Usage notes ==== This form shows the rare genitive singular ending -us instead of the standard Classical Latin ending -is. This unique ending is poorly attested and largely exclusive to religious or legal documents. === References === Coleman, Robert (1990), “Dialectal Variation in Republican Latin, with Special Reference to Praenestine”, in Proceedings of the Cambridge Philological Society‎[1], number 36 (216) (quotation in English; overall work in English), →ISSN, page 8