Comparative evidence

gʰrebh₂

• OInd. grah-/grabh- 'seize' (Whitney 1885: 40); 'grasp', 'take a side'; 'arrest', 'stop'; 'catch', 'take captive', 'imprison'; 'take possession'; 'overpower' (esp. said of diseases and demons and the punishments of varuṇa); 'eclipse'; 'gain', 'win'; 'choose'; 'assume (a shape); 'mention', 'name'; 'perceive' (with the organs of sense or with manas), 'observe', 'recognise'; 'understand', 'learn'; 'accept', 'admit', 'approve'; 'obey', 'follow'; 'consider' (as) (MW: 371-372)

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.