rogue vs scallywag

rogue and scallywag both are nouns.

Word	Noun	Adjective	Verb	Adverb
rogue	Yes	No	No	No
scallywag	Yes	No	No	No

As nouns, rogue and scallywag are synonyms defined as:

Other synonyms of rogue include knave, rapscallion, rascal, scalawag, varlet.

rogue (noun)	scallywag (noun)
a deceitful and unreliable scoundrel	one who is playfully mischievous
	a deceitful and unreliable scoundrel
	a white Southerner who supported Reconstruction policies after the American Civil War (usually for self-interest)