Lewis & Short

ăpĭārĭus, a, um, adj. [apis], relating to bees; only subst.,

  1. I. ăpĭārĭus, ii, m., a bee-keeper, Plin. 21, 10, 31, § 56.
  2. II. ăpĭ-ārĭum, ii, n., a bee-house, beehive (prob. first introd. by Columella into the written lang.; cf. Gell. 2, 20, 8), Col. 9, 5, 1; so id. 9, 3, 4; 9, 5, 6; 9, 7, 1; 9, 12, 4 al.