LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Caīnus

Caīnus m sg (genitive Caīnī)
Classical[kaˈiː.nʊs]Ecclesiastical[kaˈiː.nus]

Meaning

  1. a male given name from Hebrew, variant of Cain

Declension

declension
formsingularplural
nominativeCaīnus—
genitiveCaīnī—
dativeCaīnō—
accusativeCaīnum—
ablativeCaīnō—
vocativeCaīne—

Origins

From Ancient Greek Κάϊν (Káïn), in turn from Biblical Hebrew קַיִן (Qayin). The stress on the penultimate is extrapolated from the descended Italian Caino and Spanish Caín, but it is no proof of vocalic length and even contrasts with the original Greek.

Quick answers

What does Caīnus mean in Latin?
Caīnus, a proper noun, means “a male given name from Hebrew, variant of Cain”.
What is the genitive of Caīnus?
The genitive singular is Caīnī. Caīnus is masculine, second declension.
How do you pronounce Caīnus?
In classical Latin, [kaˈiː.nʊs]; in ecclesiastical (church) Latin, [kaˈiː.nus].