παρασχίζω
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
A rip up lengthwise, slit up, π. παρὰ τὴν λαπάρην Hdt.2.86 ; open fish, Alex.133.4 :—Pass., τὸ παρεσχισμένον σῶμα D.S.1.91 ; ἱμάτια παρεσχισμένα παρὰ μῆκος Polyaen. 6.49.