Lewis & Short

Līris, is, m.,

  1. I. a river between Latium and Campania, now Garigliano, Hor. C. 1, 31, 7; Mel. 2, 4, 9; Plin. 2, 103, 106, § 227, 3, 5, 9, § 56; Cic. Leg. 2, 3, 6; Luc. 2, 424.
    Acc.: Lirem, Cic. Leg. 2, 3, 6: Lirim, Liv. 26, 9: Lirin, Tac. A. 12, 56.
    Hence,
  2. II. Līrī-nas or Līrēnas, ātis, adj., of or belonging to the Liris: interamnates Succasini, qui et Lirenates vocantur, Plin. 3, 5, 9, § 54.