nonplus vs confound

nonplus and confound both are verbs.

Word	Noun	Adjective	Verb	Adverb
nonplus	No	No	Yes	No
confound	No	No	Yes	No

As verbs, confound is a hypernym of nonplus; that is, confound is a word with a broader meaning than nonplus:

nonplus: be a mystery or bewildering to
confound: be confusing or perplexing to; cause to be unable to think clearly

Other hypernyms of nonplus include bedevil, befuddle, confuse, discombobulate, fox, fuddle, throw.

nonplus (verb)	confound (verb)
be a mystery or bewildering to	mistake one thing for another
	be confusing or perplexing to; cause to be unable to think clearly