Yet Another tale information that a demon named Madan acquired Vak-siddhi, by which no matter what he claimed came real. He misused it to hassle human beings and murder men and women. An additional etymology suggests that valga usually means "to paralyze" and symbolizes the strength of stambhana, "paralysis" the goddess is alleged https://www.youtube.com/shorts/5VeSyP9JRw0