niḥśwan | निःश्wअन् | niHzwan
niḥ-śwan | निः-श्wअन् | (√ stan | स्तन् |; cf. VPrāt. iii, 68 P. ni-śwanati | नि-श्wअनति | for niḥ-św˚ | निः-श्w˚ |, p. ni-śwanat | नि-श्wअनत् | for niḥ-św˚ | निः-श्w˚ |, MBh.; 2. sg. Impv. niḥ-śwanihi | निः-श्wअनिहि |, RV. vi, 47, 30), to roar out, thunder, sound, cry.