purgatorius

Etymology
From. Attested from about the 5th century.

Adjective

 * 1) of or related to making clean, purificatory
 * 2)  cleansing, purgative, purgatory
 * 3)  cleansing the soul, the spirit
 * 1)  cleansing the soul, the spirit

Descendants
Forms reflecting /u/ may be influenced by reanalyzed as /ex-purg/. Note the interference of.