Serrhēum (-rhīum, -rīum), i, n.,
a promontory in Thrace , with a fortification : alia castella, Cypsela et Doriscon et Serrheum, Liv. 31, 16, 5; Mel. 2, 2, 8.— Form Serrium, Plin. 4, 11, 18, § 43.
SERRHEUM or SERRHIUM(Σέρριον, Dem. p. 85, R.; Σέρρειον, Hdt. 7.59; Steph. B. s. v.), a promontory an...
Dictionary of Greek and Roman Geography