Lewis & Short

pālārĭs, e, adj. [1. palus],

  1. I. of or belonging to pales or stakes: silva palaris, from which pales are fetched, Dig. 7, 1, 9.
  2. II. Subst.: pālārĭa, ĭum, n., the exercise of tilting against a stake; also, the place of this exercise, Veg. Mil. 1, 11; 2, 23; cf. Charis. p. 21 P.