Lewis & Short

2. lăbōrātus, a, um, adj. [laboro].

  1. I. Labored, attended with labor or difficulty (post-class.): laboratior continentia, Tert. Verg. Vel. 10.
  2. II. Laborious, troublesome, miserable, full of hardship (in post-Aug. poets): aevum, Val. Fl. 5, 255: vita, Stat. Th. 1, 341.