From Proto-Mongolic *sonas-, compare Buryat соносохо (sonosoxo), Kalmyk сонсх (sonsx), Dongxiang sonosu.
сонсох • (sonsox) (Mongolian spelling ᠰᠣᠨᠤᠰᠬᠤ (sonusqu), causative сонсгох, passive сонсдох or сонсогдох)