One more tale data that a demon named Madan obtained Vak-siddhi, by which what ever he mentioned arrived legitimate. He misused it to difficulty people and murder people. A different etymology indicates that valga usually means "to paralyze" and symbolizes the strength of stambhana, "paralysis" which the goddess is alleged to grant; this https://www.youtube.com/shorts/5VeSyP9JRw0