As a noun catharses is
.
purgution
Not English
Purgution has no English definition. It may be misspelled.
English words similar to 'purgution':
precaution,
purgation,
periastron,
prestation,
practician,
prostratin,
precation,
periostin,
preauction,
preaction,
prosodian,
porrection