noun
- a person who knowingly helps another in a crime or wrongdoing, often as a subordinate.
noun
- a person who helps another in committing a crime
1580s (earlier complice, late 15c.), from Old French complice “a confederate,” from Late Latin complicem (nominative complex) “partner, confederate,” from Latin complicare “fold together” (see complicate). With parasitic a- on model of accomplish, etc., or perhaps by assimilation of indefinite article in phrase a complice.