What does Paraetacēnē mean in Latin?

Paraetacēnē, a proper noun, means “an ancient district of Persia, in modern Iran”.

What is the genitive of Paraetacēnē?

The genitive singular is Paraetacēnēs. Paraetacēnē is feminine, first declension.

In classical Latin, [pa.rae̯.taˈkeː.neː]; in ecclesiastical (church) Latin, [pa.re.taˈt͡ʃɛː.ne].

proper noun · femininefirst declension

Paraetacēnē f sg (genitive Paraetacēnēs)

Classical[pa.rae̯.taˈkeː.neː]Ecclesiastical[pa.re.taˈt͡ʃɛː.ne]

Păraetăcēnē, ēs, f., = Παραιτακηνή,

I. a district of Persia: supra Paraetacenen et Persiden, Plin. 6, 27, 31, § 131; Curt. 5, 13, 2.—Hence,

II. Păraetăcae, ārum, m., = Παραιτάκαι, the Parœtacenes, Nep. Eum. 8; called also Păraetăcēni, Gr. Παραιτακηνοί, Plin. 6, 26, 29, § 116.

From Ancient Greek Παραιτακηνή (Paraitakēnḗ).