ἐπαρτίζω
From LSJ
ἀπορράπτειν τὸ Φιλίππου στόμα ὁλοσχοίνῳ ἀβρόχῳ → sew up Philip's mouth with an unsoaked rush, stop Philip's mouth with an unsoaked rush, shut one's mouth without any trouble
English (LSJ)
A get ready, in Ep. aor. ἐπαρτίσσειεν A.R.1.1210:—Med., c. inf., ib.877. II intr., fit in, ἐς τὸν μυκτῆρα Hp.Morb.2.33.