Carthaginis
Carthaginis is a Latin form of Carthago, meaning “Carthage”. It is the genitive singular feminine noun.
Found 89 times in the Latin texts on Socratos.
Where it is used
Cicero, In C. Verrem 2.2.3: itaque maioribus nostris in Africam ex hac provincia gradus imperi factus est; neque enim tam facile opes Carthaginis tantae concidissent nisi illud et rei frumentariae subsidium et receptaculum classibus nostris pateret. quare …
All forms of Carthago (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.