Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

ŏpĕrūla, ae, f. dim. [opera],

  1. I. a little trouble, slight service (post-class.), Dig. 50, 14, 3.
  2. II. Transf., earnings, gain (postclass.): operulas merere, App. M. 1, p. 105, 31.