Κύδνος

From LSJ

τὸ λακωνίζειν πολὺ μᾶλλόν ἐστιν φιλοσοφεῖν ἢ φιλογυμναστεῖν → to behave like a Lacedaemonian is much more to love wisdom than to love gymnastics (Plato, Protagoras 342e6)

Source

Russian (Dvoretsky)

Κύδνος:Кидн (река в Киликии) Xen.

Wikipedia EN

The Berdan (also Baradān or Baradā), the ancient Cydnus (Greek: Κύδνος), is a river in Mersin Province, south Turkey. The historical city of Tarsus is by the river and it is sometimes called the Tarsus River.