Possessory suit

from The Collaborative International Dictionary of English v.0.48

Possessory \Pos*sess"o*ry\, a. [L. possessorius: cf. F.
   possessoire.]
   Of or pertaining to possession, either as a fact or a right;
   of the nature of possession; as, a possessory interest; a
   possessory lord.
   [1913 Webster]

   {Possessory action} or {Possessory suit} (Law), an action to
      regain or obtain possession of something. See under
      {Petitory}.
      [1913 Webster]