sue 
(s)
(s)v. sued, su·ing, sues
v.tr.
1. Law To initiate or pursue legal proceedings against (another party).
2. Archaic To court; woo.
3. Obsolete To make a petition to; appeal to; beseech.
v.intr.
1. Law To initiate or pursue legal proceedings; bring suit.
2. To make an appeal or entreaty: "When you have gone too far to recede, do not sue to me for leniency" (Charles Dickens).
3. Archaic To pursue a courtship; woo.
[Middle English sewen, from Anglo-Norman suer, from Vulgar Latin *sequere, to follow, from Latin sequī; see sekw-1 in the Appendix of Indo-European roots.]
suer n.