Lewis & Short

ĕpistŭlārĭus, a, um, adj., = epistularis, of or belonging to a letter.

  1. I. Adj.: scriptio, Ennod. 1, ep. 22.
  2. II. Subst.: epīstŭlarĭi, ōrum, m., state secretaries, Salv. Gub. D. 5, 7.