Lewis & Short

Medullĭa, ae, f., or Medullum, i, n.,

  1. I. a little town in Latium, near the modern Monte Verde, Liv. 1, 33, 4; Plin. 3, 5, 9, § 68.
    Hence,
  2. II. Medullīnus, a, um, adj., of or belonging to Medullia, Medullian; as subst.
    1. A. Mĕdullīnus, i, m., a Roman surname; e. g. L. Furius Medullinus, Liv. 4, 25, 5.
    2. B. Mĕdullīna, ae, f.: Livia Medullina, Suet. Claud. 26; Juv. 6, 322.
      In plur. subst.: Medullīni, ōrum, m., inhabitants of Medullia, Inscr. Orell. 535.