βαμβαίνω

A. chatter with the teeth, Il. 10.375; stammer, Bion Fr. 6.9, AP 5.272 (Agath.), Procop. Arc.Praef.:—so also βαμβακύζω, chatter with cold, Hippon. 17:—also βαμβαλύζω, Phryn. PS p.54B., Hsch.; possibly to be restored (for βομβυλιάζω) in Arist. Pr. 949a13.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project