Comparative evidence

1.der

• OInd. dr̥- (Whitney 1885: 76) /.dr̥̄- (MW: 492) ‘crack’, ‘fly open’, ‘split open’

Derivatives

• OInd. dara ‘cleaving’, ‘breaking’, ‘navel’, ‘stream’, ‘poison’ (MW: 470)

• OInd. daraṇa ‘cleaving’, ‘breaking’, ‘falling away’ (MW: 470)

• OInd. -dari ‘splitting’, ‘opening’ (MW: 470)

• OInd. dárīman ‘destruction’ (MW: 470)

• OInd. dartr̥ ‘breaking’, ‘breaker’ (MW: 470)

• OInd. darmá ‘demolisher’(MW: 470)

• OInd. dāra ‘tearing up’, ‘hole’ (MW: 475)

• OInd. -dāraka ‘breaking up’, ‘splitting’, ‘hog’ (MW: 475)

• OInd. dāraṇa ‘tearing up’, ‘bursting’, ‘means of opening’ (MW: 475)

• OInd. -dāri ‘splitting’, ‘tearing asunder’ (MW: 475)

• OInd. dārú ‘breaking’, ‘splitting’, ‘artist’ (MW: 475)

• OInd. dŕ̥ti ‘skin of leather’, ‘leather bag’(for holding water and other fluids), (fig.)‘cloud’, ‘fish’ (MW: 491)

• OInd. dadru ‘tortoise’ (MW: 468)

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.