παραλλάξ
παραλλ-άξ, Adv.
A). alternately, in turn, Aj. 1087 ; ἀνάπαλιν καὶ π. ; 95c [ἀναπνεῖν καὶ ἐκπνεῖν] π. Resp. 471a11 ; τῶν ἀετῶν θάτερον τῶν ἐκγόνων ἁλιαίετος γίνεται π. Mir. 835a1 ; of the production of leaves, HP 6.2.8 .