Lewis & Short

tessĕrārĭus, a, um, adj. [tessera], of or belonging to tesserae.

  1. I. Adj.: ars, the art of dice-playing, Amm. 14, 6, 14; 28, 4, 21.
  2. II. Subst.: tessĕrārĭus, ii, m.
      1. 1. A dice-thrower, dice-player, Amm. 28, 4, 21; Inscr. Grut. 624, 8.
      2. 2. He who receives and distributes the watchword from the commander (v. tessera, II.), Tac. H. 1, 25; Veg. Mil. 2, 7; Inscr. Orell. 3462; 3471; 3480.