Dictionary entry

ἰσόψυχος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

ἰσόψυχος-ον

(< ἴσος, ψυχή), [in LXX: Ps 54(55):13 (כְּעֶרְכִּי)*;]

1. of equal spirit (Æsch., Agam., 1470).

2. like-minded: Phl 2:20.†