sully vs blot

sully is not a noun while blot is a noun.

Word	Noun	Adjective	Verb	Adverb
sully	No	No	Yes	No
blot	Yes	No	Yes	No

As verbs, blot is a hypernym of sully; that is, blot is a word with a broader meaning than sully:

sully: make dirty or spotty, as by exposure to air; also used metaphorically
blot: make a spot or mark onto

Other hypernyms of sully include blob, fleck, spot.

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

sully (verb)	blot (verb)
charge falsely or with malicious intent; attack the good name and reputation of someone	dry (ink) with blotting paper
make dirty or spotty, as by exposure to air; also used metaphorically	make a spot or mark onto
place under suspicion or cast doubt upon