rhotacism

POS

Noun

HYPHEN

rho=ta=cism

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CIDE DICTIONARY

rhotacism, n. [Gr. "rwtaki`zein to use the letter r (rhotacisme.].

An oversounding, or a misuse, of the letter r; specifically (Phylol.), the tendency, exhibited in the Indo-European languages, to change s to r, as wese to were. [1913 Webster]

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