τετρά-πολις · tetra-polis — LSJ
of or with four cities, τ. λαός, of the northern part of Attica, E. l.c., cf. Ar. Lys. 285 (lyr.): ἡ τ. this part of Attica, the four cities being Oenoe, Marathon, Probalinthos, Tricorythos, Arist. Fr. 491, Plu. Thes. 14.
in Doris, Str. 9.4.10.
in Syria, Id. 16.2.4.
in Cephallenia, Th. 2.30.