Comparative evidence

ḱu̯ei̯t

• OInd. śvit- 'be bright' (Whitney 1885: 181); 'be white' (MW: 1106)

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.