Lewis & Short

Phălērum, i, n., = Φαληρόν, the oldest harbor of Athens, connected with the city by a long wall, with a demos of the same name belonging to it, Plin. 4, 7, 11, § 24.
Hence,

  1. A. Phălēreus (mostly trisyl.), ĕi and ĕos, m., = Φαληρεύς, of or from Phalerum, a Phalerian: Demetrius Phalereus, or simply Phalereus, a ruler of Athens and a famous orator, about B. C. 300, Cic. Leg. 2, 25, 64; id. Fin. 5, 19, 54; id. Div. 2, 46, 96; Nep. Milt. 6, 4.
    Scanned as a quadrisyllable: Demetrius, qui dictus est Phalereus, Phaedr. 5, 1, 1.
    Acc.: Phalerea, Quint. 2, 4, 41; 10, 1, 80.
  2. B. Phălērĭcus, a, um, adj., = Φαληρικός, Phalerian: portus, Nep. Them. 6, 1.
    As subst.: Phălērĭcus, i, m. (sc. portus), = Phalerum, in Phalericum descendere, Cic. Fin. 5, 2, 5; cf.: in Phalerico, Plin. 2, 103, 106, § 225.