Crāthis, ĭdis, m., = Κρᾶθις,
a river in Magna Graecia, whose water was said to redden the hair , now Crati or Gratti , Plin. 3, 11, 15, § 97; 31, 2, 9, § 13; 31, 2, 10, § 14; Ov. M. 15, 315; id. F. 3, 581.
CRATHIS[ACHAIA13b.] ...
Dictionary of Greek and Roman Geography