Comparative evidence

h₁lei̯ǵ

• OInd. rej- 'tremble' (Whtney 1885: 144);  'go'; 'cause to tremble', 'cause to shake'; 'shine'; 'shake', 'quiver' (MW: 887)

• OInd. rej- 'trembling', 'quaking' (MW: 887)

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.