Comparative evidence

1.deh₂, 1.deh₂i̯

• OInd. day- ‘divide’, ‘impart’, ‘partake’, ‘sympathize’ (MW: 469; Whitney 1885: 70)

Derivatives

• OInd. dayā́ ‘sympathy’, ‘compassion’ (MW: 469-470)

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.