Yet another tale data that a demon named Madan acquired Vak-siddhi, by which what ever he explained arrived correct. He misused it to difficulty human beings and murder folks. One more etymology implies that valga implies "to paralyze" and symbolizes the strength of stambhana, "paralysis" the goddess is said to grant; this concept https://www.youtube.com/shorts/5VeSyP9JRw0