1. to break off, snap asunder , (Iliad by Homer); with genitive, ὕδωρ ἐξέρρηξεν ὁδοῖο the water broke off a piece of the road, (Iliad by Homer):—;Pass. to break or snap asunder , (Herdotus Historicus)

2. with accusative cognate to let break forth, break out with , (Plutarch):—;Pass. to break out , of an ulcer, (Herdotus Historicus); of a quarrel, ἐς μέσον ἐξερράγη it broke out in public, (Herdotus Historicus); of persons, to break out into passionate words , (Herdotus Historicus)

3. sometimes also intransitive in Act. οὔ ποτ᾽ ἐκρήξει μάχη (Sophocles Tragicus) (ML)