/ əˈkʌmplɪs; NAmE əˈkɑːm-/ noun
a person who helps another to commit a crime or to do sth wrong
••
WORD ORIGIN
mid 16th cent.: alteration (probably by association with accompany ) of Middle English complice an associate , via Old French from late Latin complex , complic- allied, from com- together + the root of plicare to fold.