a. Gr. βρεκεκεκέξ, used by Aristophanes to imitate the croaking of frogs.
1607. Walkington, Opt. Glass, 78. Frogs with their brekekekex brekekekex coax.
1656. Trapp, Comm. Matt. xxii. 33. Those Romish frogs, the Jesuits, will never have done, though never so much set down, but be still up with their hateful Brekekekex-coax-coax.