Dislalia in the articulation of the r (rho in Greek) both the single and the double by omission, substitution or distortion. Probably Demosthenes, the Greek orator, had this problem which he perhaps overcame. His enemies nicknamed him battalos de battarizo, farfullar, stuttering. Speech therapists speak of lambdacism when the r is replaced by the l (lambda in Greek) as the Chinese usually do.
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