Stephanos of Byzantium - Ethnika
Kanastron: a promontory of Thrace and Macedonia. The ethnonym is 'Kanastraios', but Sophokles has 'Kanastraion' in his commentary on The Argonautika, saying it is 'a cape of Pallene'. However, the ethnonyms run contrary to this, unless we were to understand this as having the same pattern as 'Lechaion' and 'Lechaios', 'Lykeion' and Apollo 'Lykeios', or 'Nymphaion' and 'Nymphaios'.
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.