niddhamana

drainage, drain, canal Vin.ii.120 (udaka˚; dhovituṃ immediately preceding); Ja.i.175 Ja.i.409, Ja.i.425; Ja.iii.415; Ja.iv.28; Ja.v.21 (udaka˚); Dhp-a.ii.37.

of niddhamati or = *nirdhāvana = ˚dhovana to dhāvati2