LSJ
ἡ, name of several cities, of which the best known was the Milesian colony in Scythia, SIG 286.15 (iv BC), Str. 7.3.17, etc. ; its citizens being Ὀλβιοπολῖται, Hdt. 4.18, SIG 286.1 ; hence Adj. Ὀλβιοπολιτικός, ή, όν, ib. 218.16.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)