Lewis & Short

commentārĭensis, is, m. [commentarius], one who takes control, has the care of a thing; and specif.,

  1. I. A registrar of public documents, a recorder, secretary, Dig. 49, 14, 45, § 7; Cod. Just. 1, 27, 1, § 8.
  2. II. One who makes out a list of prisoners, a keeper of a prison, Cod. Just. 9, 4, 4; Dig. 48, 20, 6; 48, 3, 8.
  3. III. One who forms a list of soldiers, Ps.-Ascon. Cic. Verr. 2, 1, 28, § 71.