Comment: This root should not be confused with another PL interrogative, *š:i q.v. It serves as a base for PL *šʷimV- 'how many' (Lezg. šumu-d, Tab. š̌nu-b, Rut. šumu-d, Arch. šume-jṭu; Ud. Vart. ema, Nidzh. hema is partially contaminated with another PL interrogative stem, *ha-/*hi- q.v.). A loan from Lezg. is probably Khin. sam 'how many'.
