Ἀχαιικός
From LSJ
ξένῳ δὲ σιγᾶν κρεῖττον ἢ κεκραγέναι → it's better for a stranger to keep silence than to shout (Menander)
English (LSJ)
ή, όν, (Ἀχαιός)
A of or for the Achaians, Achaian, A.Ag. 185,624, E.Tr.236, al.
Greek (Liddell-Scott)
Ἀχαιικός: -ή, -όν, (Ἀχαιὸς) ὁ ἀνήκων εἰς τοὺς Ἀχαιούς, Αἰσχύλ. Ἀγ. 184. 624, Εὐρ.
English (Autenrieth)
Achaean.