Orohaṇa (neuter) [abstract from orahati] descent, in udakorohaṇānuyoga practice of descending in to the water (i.e. bathing) Pp 55; Ja I 193; Miln 350.
(nt, nt, act, from orohati) descending; going down [lit.] ascending down Construction: ava + √ruh > roh + *aṇa