In individual languages there are different ways of opposing the masculine form of the 2 pl. pronoun to the feminine one. In Akk. the two forms are opposed through the vocalic contrast in the second and third syllables (masc. -u-...-u vs. fem. -i-...-a) with no consonantal contrast (-n- in both genders). In Heb., Arb., Gez., Hrs., Jib. the gender opposition is provided by the third consonant (masc. -m- vs. fem. -n-) alongside with some vocalic differences. The mere consonantal opposition seems to be present only in Mehri. See Kogan 2009:67.
This form can be viewed as evidence for the vocalic opposition as the primary means of marking the gender in 2 pl. pronouns (*ˀanta-nu vs. *ˀanti-na). See Kogan 2009:68.
Used as a polite form of the 2 sg. personal pronoun (Bulakh–Kogan 2013b:97). According to Hetzron (1972:89), it goes back to the 2 pl. pronoun, where final *-m was eliminated.