Comparative evidence

ḱu̯eh₁

• OInd. śvi-/śū-/śvā- 'swell' (Whitney 1885: 175); 'grow', 'increase' (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.