Comparative evidence

3.dʰeu̯h₁, 3.dʰeu̯h₂, 3.dʰeu̯h₃, 3.dʰeu̯

• OInd. dhāv- 'rinse' (Whitney 1885: 83), 'cleanse', 'wash', 'purify', 'make bright', 'rub' (MW: 516)

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.