μετεκ-βαίνω · metek-bainō — LSJ
go from one into another, μετεκβαίνεσκε (Ion. impf.) ἐκ τοῦ ἅρματος ἐς ἁρμάμαξαν Hdt. 7.41, cf. 100; εἰς πλοῖον Antipho 5.21.
in speaking, pass on, μ. εἰς ἕτερόν τινα λόγον Pl. Lg. 642b, cf. 935a.
c. acc., μ. φθόγγον pass from one note to another, AP 12.187 (Strat.).