-cism

== English == === Etymology === Back-formation from iotacism. === Suffix === -cism Added to names of primarily Greek letters to indicate a phonetic phenomenon relating to the corresponding phoneme: Excessive usage of the phoneme. A sound change towards the phoneme. The retention of a phoneme when related varieties lose it. A speech disorder marked by either excessive or defective use of the phoneme. ==== Derived terms ==== ==== Related terms ==== -tacism