Ārētĭum (ARRETIVM, Inscr. Orell. 3547 al.), ii, n., a large town in Etruria, now Arezzo, Plin. 35, 12, 46, § 160; cf. Müll. Etrusk. 1, 125; 1, 128; 1, 224; 1, 233 al.; Mann. Ital. I. 402.