संस्‍कृतशब्‍दकोशः

Monier–Williams

कुयवाच् — {kúya-vāc} mfn. ({kuya} = 1. {ku}), speaking ill, abusing (N. of a demon slain by Indra) RV. i, 174, 7 (cf. RV. v, 29, 10 and 32, 8.)