Abatement in law would terminate it completely although it could be restarted at the plaintiff's request. The second term is more common. It has now been abolished, in most if not all, common law jurisdictions.
Termination in law would bring it to an end completely, although it could be reinitiated at the plaintiff's request. The second term is more frequently used. It has now been abolished in most, if not all, common law jurisdictions.