ἥκιστος
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)
η, ον, prob., like foreg., Sup. of ἦκα,
A least, ὁ δ' ἥκιστ' ἔχων μακάρτατος S.Fr.410. 2 c. inf., worst at... ἥ. θηρᾶν, κρυμῷ ὁμιλεῖν, Ael.NA9.1,4.31 (cf. foreg.). II mostly as Adv., ἥκιστα least, Hp.Acut.68, S.Ph.427, etc.; οὐκ ἥ. ἀλλὰ μάλιστα Hdt.4.170; ὡς ἥ. as little as possible, Th.1.91. 2 in reply to a question, not at all, S.OT623, E.HF299, etc.; ἥκιστά γε S.OT1386, Pl.Phdr.276c; ἥ. πάντων Ar.Pl.440. 3 οὐχ ἥ., freq. in litotes, above all, more than all, A.Ch.116; οἵ τε ἄλλοι καὶ οὐχ ἥ. Ἀθηναῖοι Pl.Prt.324c, cf. Tht. 177c, Smp.178a, al.; ἐπὶ πολλῶν μέν... οὐχ ἥ. δὲ ἐν τοῖς παροῦσι πράγμασι D.2.1, cf. Th.7.44, etc.: c. gen., οὐχ ἥ. Ἀθηναίων σέ, ἀλλ' ἐν τοῖς μάλιστα Pl.Cri.52a.