Lexical Definition

‎πολιτάρχης‎ politárchēs (pol-it-ar'-khace) city authority ^G:N-M
from ‎πόλις‎ and ‎ἄρχω‎

ruler of the city.

• a town-officer, i.e. magistrate

Abbott-Smith

*† πολιτάρχης, -ου, ὁ, = πολίαρχος (Pind., Eur.),
the ruler of a city, a politarch: Ac 17:6, 8 (v. MM, xx).†

Abbott-Smith References

Liddell-Scott-Jones

πολιτάρχης-ης, ου, ὁ,

civic magistrate, at Thessalonica, [NT+2nd c.BC+]; in Egypt, [Refs 1st c.BC+]:—also πολῑταρχ-ος, ὁ, [Refs 4th c.BC+]

_{LSJ Scripture Refs: Acts.17.6}