Akademik

purgation
n.
1 purification.
2 purging of the bowels.
3 spiritual cleansing, esp. (RC Ch.) of a soul in purgatory.
4 hist. the cleansing of oneself from accusation or suspicion by an oath or ordeal.
Etymology: ME f. OF purgation or L purgatio (as PURGE)

Useful english dictionary. 2012.