Advocate

[Lat. advocatus, from advocare, to call to, or upon, to defends] One who is called upon to assist or defend another; a defender, patron, or protector; one called to give legal advice or assistance, particularly to plead (in the popular sense) another's cause in court. A person learned in the law, and duly admitted to practice, who assists his client with advice, and pleads for him in open court.* Holthouse. An advocate, in the civil and ecclesiastical courts, is the same as a counsellor, or counsel in the courts of common law.

3 Bl. Com. 25, 26.

The term is more commonly used in the Scotch than in the English law. See Barrister, Counsel, Counsellor.