ativac
Monier-Williams Sanskrit-English Dictionary (2nd ed.)
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p. 15, col. 2.
ati-√ vac to blame, to speak too loudly either in blaming or praising.
Stchoupak Dictionnaire Sanscrit-Français
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p. 15, col. 1.
ati-VAC- blâmer; parler en termes exagérés de
qq'un.