ACCOMPLICE

accomplice, confederate

(noun) a person who joins with another in carrying out some plan (especially an unethical or illegal plan)

Source: WordNet® 3.1

Etymology

Noun

accomplice (plural accomplices)

(legal) An associate in the commission of a crime; a participator in an offense, whether a principal or an accessory.

(rare) A cooperator.

• William Shakespeare, Henry VI, Part I, V-ii

Usage notes

• Followed by with or of before a person and by in or to (or sometimes of) before the crime; as, "A was an accomplice with B in the murder of C"; or, "D was an accomplice to murder".

Synonyms

• abettor, accessory, assistant, associate, confederate, coadjutor, ally, promoter; see abettor.

Source: Wiktionary

Ac*com"plice, n. Etym: [Ac- (perh. for the article a or for L. ad) + E. complice. See Complice.]

1. A cooperator. [R.] Success unto our valiant general, And happiness to his accomplices! Shak.

2. (Law)

Definition: An associate in the commission of a crime; a participator in an offense, whether a principal or an accessory. "And thou, the cursed accomplice of his treason." Johnson.

Note: It is followed by with or of before a person and by in (or sometimes of) before the crime; as, A was an accomplice with B in the murder of C. Dryden uses it with to before a thing. "Suspected for accomplice to the fire." Dryden.

Syn.

– Abettor; accessory; assistant; associate; confederate; coadjutor; ally; promoter. See Abettor.

Source: Webster’s Unabridged Dictionary 1913 Edition