LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Borūssī

Borūssī m pl (genitive Borūssōrum)
Classical[bɔˈruːs.siː]Ecclesiastical[boˈrus.si]

Meaning

  1. the Prussians collectively
    FRIDERICVS GVILIELMVS III · BORVSSORVM REXFrederick William III · King of the Prussians
    For quotations using this term, see Citations:Borussi.

Declension

declension
formsingularplural
nominativeBorūssus
Borūssa, Borūssum		Borūssī
Borūssae, Borūssa
genitiveBorūssī
Borūssae		Borūssōrum
Borūssārum
dativeBorūssō
Borūssae		Borūssīs
accusativeBorūssum
Borūssam		Borūssōs
Borūssās, Borūssa
ablativeBorūssō
Borūssā		Borūssīs
vocativeBorūsse
Borūssa, Borūssum		Borūssī
Borūssae, Borūssa

Origins

Latinization of a Baltic (Old Prussian) endonym. An alternate Latinization was Prūssia, from the Middle High German exonym Prūzin.

Quick answers

What does Borūssī mean in Latin?
Borūssī, a proper noun, means “the Prussians collectively”.
What is the genitive of Borūssī?
The genitive singular is Borūssōrum. Borūssī is masculine, second declension.
How do you pronounce Borūssī?
In classical Latin, [bɔˈruːs.siː]; in ecclesiastical (church) Latin, [boˈrus.si].