(deep) pond, a lake DN.i.50 (˚ṃ iva vippasannaṃ udānaṃ); SN.i.169 = SN.i.183 (dhammo rahado sīla-tittho); Snp.721 = Mil.414 (rahado pūro va paṇḍito) Iti.92 (rahado va nivāto), Iti.114 (r. sa-ummi sāvaṭṭo sagaho); Dhp-a.ii.152
■ As udaka˚; at DN.i.74, DN.i.84; AN.iii.25 (ubbhid-odako); Pp.47
■ On r. in similes see J.P.T.S. 1907, 127.

Vedic hrada, with diaeresis & metathesis *harada → rahada; the other metathetic form of the same hrada is *draha → daha