What is "mytacism"

Mytacism \My"ta*cism\, n. [Gr. ?. Cf. Metacism.] Too frequent use of the letter m, or of the sound represented by it.

alt. A speech disorder manifesting as an abnormal repetition of the sound (IPAchar: /m/) or replacement of consonants with m-like sounds. n. A speech disorder manifesting as an abnormal repetition of the sound (IPAchar: /m/) or replacement of consonants with m-like sounds.