dormitator

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

dormītātor, ōris, m. [dormito],

a sleeper , sluggard , commonly understood of a thief, who sleeps by day and steals by night; but better, in gen., as a dreamer , stupid fellow , only Plaut. Trin. 4, 2, 20, and 142 Brix ad loc.