Kastax: genitive Kastakos (as Naryx has genitive Narykos), a city of Iberia. The ethnic (demonym) is Kastakaios, as Narykaios. Appian (Hisp. 127) so states.
Herodian overlaps
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.
No significant Herodian overlaps were found for this headword in the latest run.