Comparative evidence

gres

• OInd. gras- 'devour' (Whitney 1885: 40); 'seize with the mouth', 'take into the mouth', 'swallow', 'eat', 'consume'; 'swallow up', 'cause to disappear'; 'eclipse'; 'slur over words', 'pronounce indistinctly'; 'suppress', 'stop', 'neglect' (a lawsuit) (MW: 371)

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.