LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Dumnōniī

Dumnōniī m pl (genitive Dumnōniōrum)
Classical[dʊmˈnoː.ni.iː]Ecclesiastical[dumˈnɔː.ni.i]

Meaning

  1. A tribe of Britannia.

Declension

declension
formsingularplural
nominative—Dumnōniī
genitive—Dumnōniōrum
dative—Dumnōniīs
accusative—Dumnōniōs
ablative—Dumnōniīs
vocative—Dumnōniī

Origins

Of Celtic origin, probably sharing the first element of the Gaulish prince name Dumnorix, from Proto-Celtic *dubnos (“deep, world”). More at Dumnonii.

Quick answers

What does Dumnōniī mean in Latin?
Dumnōniī, a proper noun, means “A tribe of Britannia.”.
What is the genitive of Dumnōniī?
The genitive singular is Dumnōniōrum. Dumnōniī is masculine, second declension.
How do you pronounce Dumnōniī?
In classical Latin, [dʊmˈnoː.ni.iː]; in ecclesiastical (church) Latin, [dumˈnɔː.ni.i].