sophistry vs fallacy

sophistry and fallacy both are nouns.

Word	Noun	Adjective	Verb	Adverb
sophistry	Yes	No	No	No
fallacy	Yes	No	No	No

As nouns, fallacy is a hypernym of sophistry; that is, fallacy is a word with a broader meaning than sophistry:

sophistry: a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone
fallacy: a misconception resulting from incorrect reasoning

Other hypernyms of sophistry include false belief.

sophistry (noun)	fallacy (noun)
a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone	a misconception resulting from incorrect reasoning