What does ACTIO NON ULTERIUS mean?

ACTIO NON ULTERIUS meaning in Law Dictionary

In English pleading. A name directed at the unique term in plea to your further mainte nance of activity, launched In plact of plea puis darrein continuance; the averment becoming that the plaintiff ought maybe not further (ulterius) to possess or keep his action. Steph. PI. 04, 65, 401.