σύρρηξις

εως, ἡ
A. internal rupture (into another part) of abscess, Heliod. ap. Orib. 44.9.1, Archig. ap. Aët. 8.73, Ruf. ap. eund.11.18, Aret. CD 1.13.
2. clashing together, Plot. 4.5.5 (nisi σύρραξιν legend.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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