(Πολιάς), i. e. "the goddess protecting the city," a surname of Athena at Athens, where she was especially worshipped as the protecting divinity of the acropolis. (Paus. 1.27. § I; Arnob. ad v. Gent. 6.193.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890