From Proto-Mongolic *söged-, perhaps from or otherwise related to Proto-Turkic *sök-.
Compare Mongghul suguada, Tuvan сөгеер (sögeer).
сөгдөх • (sögdöx) (Mongolian spelling ᠰᠥᠭᠦᠳᠬᠦ (sögüdkü), causative сөгдүүлэх)