1. The plaintiff, the person who files a lawsuit. 2. A person who makes efforts or takes out an application for a specific purpose, e.g. a suitor for a woman’s hand in marriage. 3. A party to a suit or action in court In its ancient sense, “suitor” meant one who was bound to attend the county court; also one who formed part of the secta.
SUITOR
TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.