Lewis & Short

1. sŭper -flŭo, ĕre, v. n. and a.

  1. I. Neutr., to run over, overflow (mostly postAug.; only once in Cic.; syn. redundo).
    1. A. Lit.: in aeneo vase leniter coquuntur, ne superfluant, Cels. 6, 18, 2: fons superfluit, Plin. 31, 4, 28, § 51: superfluentis Nili receptacula, Tac. A. 2, 61: si (Nilus) immodicus superfluxit, Sen. Ben. 6, 7, 3.
    2. B. Trop.
      1. 1. To be superabundant, to superabound: pecunia non superfluens, Sen. Ben. 1, 11, 5: virgines, id. Contr. 1, 3, 4: populus, id. ad Helv. 6, 11: claritas, Plin. 4, 7, 11, § 24.
        1. b. Transf., to be superfluous: nihil neque desit, neque superfluat, Quint. 8, 2, 22; so (opp. deesse) id. 12, 10, 16; cf. id. 10, 7, 13; Plin. 36, 15, 24, § 115.
      2. 2. To have a superabundance of a thing: cum Venetis Aquileia superfluit armis, Sil. 8, 606: redundantes nos et superfluentes juvenili quādam dicendi impunitate et licentiā, etc., Cic. Brut. 91, 316; cf.: orator non satis pressus sed supra modum exsultans et superfluens, extravagant, Tac. Or. 18.
        Absol.: superbus et superfluens (sc. divitiis), Cat. 29, 7.
  2. * II. Act., to flow by or past: nec quae dicentur, superfluent aures, Quint. 2, 5, 13 Spald.