χνόη

A. axle-box, nave, ἄξων ἐν χνοίῃσιν Parm. 1.6; prob. in Emp. 46; ἔλακον ἀξόνων βριθομένων χνόαι A. Th. 153 (lyr); ἔθραυσε δ’ ἄξονος μέσας χνόας S. El. 745, cf. 717; ἀντύγων χνόας E. Rh. 118.

2. metaph., χνόαι ποδῶν the joints on which the feet play, as the wheels on the axle, A. Th. 371.