φιλοσοφίαν καινὴν γὰρ οὗτος φιλοσοφεῖ → this man adopts a new philosophy
subs.
P. ὄρχησις, ἡ, V. ὀρχηστύς, ἡ (Eur., Cycl. 171).
The art of dancing: P. ἡ ὀρχηστική.
Celebrate with dancing, v.: V. ἀναχορεύειν (acc.), χορεύειν (acc.).