διασκάπτω · diaskaptō — LSJ
dig through, ἰσθμόν Paus. 2.1.5; δ. τὰ τείχη make a breach in them, Lys. 13.14; ῥόως τῷ ὕδατι make a breach for water in the canals, Tab.Heracl. l.c., cf. Ph. Bel. 98.27: also c. gen., τοῦ τείχους Plu. Pyrrh. 33; excavate, τάφον Charito 8.7.