LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Mscislaus

Mscislaus m sg (genitive Mscislaī)
Classical[ˈmskɪs.ɫa.ʊs]Ecclesiastical[ˈmʃiz.la.us]

Meaning

  1. masculinesingulara male given name from Polish
    Mox expeditionem in Russos, qui morte Boleslai accepta Iaroslao & Mscislao Ducibus rebellarunt, fecit, ac feliciter confecit.1626, Salomon Neugebauer, Icones et vitae principum ac regum Poloniae omnium, page 35:

Declension

declension
formsingularplural
nominativeMscislaus—
genitiveMscislaī—
dativeMscislaō—
accusativeMscislaum—
ablativeMscislaō—
vocativeMscislae—

Origins

Borrowed from Polish Mścisław + -us.

Quick answers

What does Mscislaus mean in Latin?
Mscislaus, a proper noun, means “a male given name from Polish”.
What is the genitive of Mscislaus?
The genitive singular is Mscislaī. Mscislaus is masculine, second declension.
How do you pronounce Mscislaus?
In classical Latin, [ˈmskɪs.ɫa.ʊs]; in ecclesiastical (church) Latin, [ˈmʃiz.la.us].