Lewis & Short

intentātĭo, ōnis, f. [intento], a stretching out or extending towards a thing.

  1. I. Lit.: oculi ad intentationem subitam digitorum comprimuntur, Sen. Ira, 2, 4, 2.
  2. II. Trop., a reproaching with a thing: criminum, Tert. Apol. 46 dub. (al. intentio).