complicate

complicate /ˈkɑːmpləˌkeɪt/ verb
complicates; complicated; complicating
complicate
/ˈkɑːmpləˌkeɪt/
verb
complicates; complicated; complicating
Britannica Dictionary definition of COMPLICATE
[+ object]
1 
: to make (something) more difficult or less simple
2 
: to cause (a medical problem) to become more dangerous or harder to treat