Ossajjana (neuter) [from ossajati] release, dismissal, sending off Sv I 130.
数字巴利辞典 DPD
(nt, nt, act, from ossajjati)
giving up; abandoning; relinquishing
giving up; abandoning; relinquishing
[lit.] relinquishing down
Construction: ava > o + √sajj + ana