Lewis & Short

Gedrōsi or Cedrōsi, ōrum, m., = Γεδρωσοὶ and Γαδρωσοί or Γαδρώσιοι, a people of Asia, in the modern Mekran, Mel. 3, 8, 4; Plin. 6, 20, 23, § 78; called also Gedrōsii (Cedr-), Curt. 9, 10, 3; and Gedrūsi, Plin. 6, 23, 25, § 94 sq.
Gedrōsĭa (Cedr-), ae, f., the country of the Gedrosi: Γεδρωσία or Κεδρωσία, Plin. 21, 11, 36, § 62.