The phrase χορικῶν ἐστιν ἑταίρα is a precise technical reference to the role of Victory (Nike) in the dithyrambic and comic choruses, where she was traditionally invoked as a companion or 'female associate' of the chorus. The genitive plural χορικῶν (of the chorus members) functions as a possessive genitive, while ἑταίρα here carries its specific social connotation of a female companion or partner in ritual performance, distinct from a mere 'friend' (φίλη). This reflects the ritualized relationship between the chorus and the deity they invoke, particularly in the context of Aristophanic comedy where the chorus often interacts directly with divine personifications.