Παναχαιοί
From LSJ
ψυχῆς πείρατα ἰὼν οὐκ ἂν ἐξεύροιο πᾶσαν ἐπιπορευόμενος ὁδόν· οὕτω βαθὺν λόγον ἔχει → one would never discover the limits of soul, should one traverse every road—so deep a measure does it possess
English (LSJ)
οἱ,
A all the Achaeans, Il.2.404, al.: fem. Πᾰνᾰχαιά, ἡ, epith. of Demeter, Paus.7.24.3; of Artemis, BCH25.350 (Delph.):— also Πᾰνᾰχαιὶς γῆ, all Achaea, A.R.1.243; Πᾰνᾰχαιίς, epith. of Athena, Paus. 7.20.2.