Lewis & Short

stŭdĭŏlum, i, n. dim. [studium].

  1. * I. A little study, a little piece of composition, M. Aurel. ap. Front. Ep. ad M. Caes. 5.
  2. II. A little study, i. e. a little room or closet to study in, Inscr. Murat. 937, 13.