con·test 1 /kən-'test/ vt: to dispute or challenge through legal procedures
contest a will
con·test 2 /'kän-ˌtest/ n: a challenge brought through formal or legal procedures
boundary controversies or other contest s between states — Felix Frankfurter; specif: will contest see also no contest clause
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.