confound

confound /kənˈfaʊnd/ verb
confounds; confounded; confounding
confound
/kənˈfaʊnd/
verb
confounds; confounded; confounding
Britannica Dictionary definition of CONFOUND
[+ object]
1 
: to surprise and confuse (someone or something)
— often used as (be) confounded
2 
: to prove (someone or something) wrong
3 
informal + old-fashioned — used as an interjection to express anger or annoyance