Comparative evidence

gʷerh₃

• OInd. gṝ-/gr̥-/gir-/gil- 'swallow' (Whitney 1885: 38); 'swallow', 'devour', 'eat'; 'emit', 'eject from the mouth' (MW: 363)

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.