allayer vs reliever

allayer and reliever both are nouns.

Word	Noun	Adjective	Verb	Adverb
allayer	Yes	No	No	No
reliever	Yes	No	No	No

As nouns, allayer and reliever are synonyms defined as:

allayer and reliever: a person who reduces the intensity (e.g., of fears) and calms and pacifies

Other synonyms of allayer include comforter.

allayer (noun)	reliever (noun)
a person who reduces the intensity (e.g., of fears) and calms and pacifies	a pitcher who does not start the game
	someone who takes the place of another (as when things get dangerous or difficult)
	a person who reduces the intensity (e.g., of fears) and calms and pacifies