ὑποκατακλίνομαι τοῦ εὶς πλέον ἐναντιοῦσθαι → desist from further opposition;
Ar. and P. ῥυτίς, ἡ.
pucker one's brows: Ar. and P. τὰς ὀφρῦς ἀνασπᾶν.