category around the root consonants, in an appropriate way, generally following specific patterns.

It is a peculiarity of Semitic linguistics that many of these consonantal roots are triliterals, meaning that they consist of three letters (although there are a number of quadriliterals, and in some languages also biliterals). Such roots are also common in other Afroasiatic languages. While Berber mostly has triconsonantal roots, Chadic,