pervasion vs suffusion

pervasion and suffusion both are nouns.

Word	Noun	Adjective	Verb	Adverb
pervasion	Yes	No	No	No
suffusion	Yes	No	No	No

As nouns, pervasion and suffusion are synonyms defined as:

pervasion and suffusion: the process of permeating or infusing something with a substance

Other synonyms of pervasion include permeation.

pervasion (noun)	suffusion (noun)
the process of permeating or infusing something with a substance	the process of permeating or infusing something with a substance