daub vs smirch

daub and smirch both are nouns.

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

As nouns, daub and smirch are synonyms defined as:

Other synonyms of daub include blot, slur, smear, smudge, spot.

daub (noun)	smirch (noun)
an unskillful painting	an act that brings discredit to the person who does it
a blemish made by dirt	a blemish made by dirt
material used to daub walls

daub (verb)	smirch (verb)
cover (a surface) by smearing (a substance) over it	charge falsely or with malicious intent; attack the good name and reputation of someone
coat with plaster	smear so as to make dirty or stained
apply to a surface