LSJ
break into; — Pass., discharge itself into, ἐς ἔντερον Aret. SA 1.10. intr. in pf. part. Act. ἐνερρωγώς, υῖα, ός, broken, κλῖναι IG 11(2).199 B 90 (iii BC).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
[ῡ], (ῥήγνυμι), einreißen, einbrechen, Sp.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)