Britanniae

Britanniae is a Latin form of Britannia, meaning “Britain”. It is the nominative plural feminine noun or vocative plural feminine noun or dative singular feminine noun or genitive singular feminine noun.

Found 34 times in the Latin texts on Socratos.

Where it is used

Caesar, De Bello Gallico 2.4.7: … ostra etiam memoria Diviciacum, totius Galliae potentissimum, qui cum magnae partis harum regionum, tum etiam Britanniae imperium obtinuerit; nunc esse regem Galbam: ad hunc propter iustitiam prudentiamque summam totius belli omni …

All forms of Britannia (declension table)

Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.