Comparative evidence

gʷei̯, gʷei̯h

• OInd. ji- 'conquer' (Whitney 1885: 53); 'win', 'acquire' (by conquest or in gambling), 'vanquish' (in a game or lawsuit), 'defeat', 'excel', 'surpass'; 'overcome', 'remove' (any desire or difficulties or diseases); 'expel'; 'be victorious', 'gain the upper hand' (MW: 420)

References

MW = Monier-Williams, M. 1899. A Sanskrit-English Dictionary. Clarendon Press.
Whitney 1885 = Whitney W. D. 1885. The roots, verb forms and primary derivatives of the Sanskrit language. A supplement to his Sanskrit grammar. Leipzig.