One More tale data that a demon named Madan obtained Vak-siddhi, by which regardless of what he said came real. He misused it to difficulty humans and murder folks. Another etymology implies that valga implies "to paralyze" and symbolizes the power of stambhana, "paralysis" which the goddess is claimed to grant; this theory https://www.youtube.com/shorts/5VeSyP9JRw0