As adjectives the difference between purgatorial and purgative
is that purgatorial is of, pertaining to, or resembling purgatory while purgative is (capable of) purging.
As a noun purgative is
something, such as a substance or medicine, that purges; laxative.
purgatorial
English
Adjective
(
en adjective)
Of, pertaining to, or resembling purgatory
That purifies by removing sin; expiatory
purgative
English
Adjective
(head)
(capable of) purging
Noun
(
en noun)
something, such as a substance or medicine, that purges; laxative