pardoner vs absolver

pardoner and absolver both are nouns.

Word	Noun	Adjective	Verb	Adverb
pardoner	Yes	No	No	No
absolver	Yes	No	No	No

As nouns, absolver is a hyponym of pardoner; that is, absolver is a word with a more specific, narrower meaning than pardoner:

pardoner: a medieval cleric who raised money for the church by selling papal indulgences
absolver: someone who grants absolution

pardoner (noun)	absolver (noun)
a medieval cleric who raised money for the church by selling papal indulgences	someone who grants absolution
a person who pardons or forgives or excuses a fault or offense