Etymology

Noun

1. A professional person qualified (as by a law degree and/or bar exam) and authorized to practice law, i.e. conduct lawsuits and/or give legal advice.
2. By extension, a legal layman who argues points of law.

Verb

1. To practice law.
2. To perform, or attempt to perform, the work of a lawyer.
3. To make legalistic arguments.
4. With "up", to acquire the services of a lawyer.
5. With "up", to exercise the right to ask for the presence of one's attorney.