διεκ-πλέω · diek-pleō — LSJ
sail out through, τὸν Ἑλλήσποντον Hdt. 7.147; τὰς Κυανέας Id. 4.89; τὴν διώρυχα Id. 7.122; σχοίνους δυώδεκα Id. 2.29; Ἡρακλέων στηλέων Id. 4.42: abs., sail out, ib. 43.
in naval tactics, break the enemyʼs line by sailing through it, so as to be able to charge their ships in flank or rear, Hdt. 6.15, Th. 1.50, 7.36, Sosyl.p.31 B., Plb. 1.51.9.