Comparative evidence

ḱlei̯s

• OInd. śriṣ- probably a collateral form of śliṣ- (Whitney 1885: 179; MW: 1098)

• OInd. śliṣ-/śriṣ- 'clasp' (Whitney 1885: 180); 'adhere', 'attach', 'cling' (to); 'embrace'; 'unite', 'join' (trans. or intrans.); 'result', 'be the consequence' (of anything) (MW: 1104)

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.