From Proto-Berber *səmmus. Closely related to Kabyle semmus, Tachawit semmus, Central Atlas Tamazight ⵙⵎⵎⵓⵙ (smmus), and more distantly related to Proto-Semitic *ḫamš-.
sămmos m (feminine sămmosăt) (Tamasheq, Tamahaq)