smirch vs besmirch

smirch is a noun but besmirch is not a noun.

Word	Noun	Adjective	Verb	Adverb
smirch	Yes	No	Yes	No
besmirch	No	No	Yes	No

As verbs, smirch and besmirch are synonyms defined as:

smirch and besmirch: charge falsely or with malicious intent; attack the good name and reputation of someone

Other synonyms of smirch include asperse, calumniate, defame, denigrate, slander, smear, sully.

As verbs, smirch and besmirch are synonyms defined as:

smirch (noun)	besmirch (noun)
an act that brings discredit to the person who does it
a blemish made by dirt

smirch (verb)	besmirch (verb)
charge falsely or with malicious intent; attack the good name and reputation of someone	charge falsely or with malicious intent; attack the good name and reputation of someone
smear so as to make dirty or stained	smear so as to make dirty or stained