Comparative evidence

lei̯ǵʰ, lei̯ǵ

• OInd. rih- 'lick' (Whitney 1885: 141); 'kiss', 'caress', 'praise', 'worship', 'ask', 'implore' (MW: 881)

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.