Mimation ( Arabic: تَمْيِيم, tamyīm), is the phenomenon of a suffixed -m (the letter mem in many Semitic abjads) which occurs in some Semitic languages.
This occurs in Akkadian on singular nouns. [1] It was also present in the Proto-Semitic language.
It is retained in the plural and the few remaining dual forms in Modern Hebrew. It corresponds to the letter nun (-n) in Classical Arabic and is retained in the singular ( nunation), dual, and plural.