suitor

suit·or

1. A man who is courting a woman.
2. A person who makes a petition or request.
3. Law A person who sues in court; a plaintiff; a petitioner.
4. A person or group seeking to purchase controlling interest in a company.

Origin: Middle English, plaintiff, from Anglo-Norman, from Latin secūtor, follower, from secūtus, past participle of sequī, to follow; see sek^w-¹ in Indo-European roots.