Trifidus, pen. cor. Adiect. Diuided or cleft in three partes. vt Cuspis trifida. Claud. Flamma trifida.Ouid. Hasta trifida. Val. Flac.Trifinium.The putting of three sieldes togither.
Lewis and Short: Latin dictionary
trĭfĭdus, a, um, adj. [ter-findo], cleft or cloven into three parts, three-cleft, threeforked (poet. and mostly post-Aug.): hasta (Neptuni), Val. Fl. 1, 641; cf.: cuspis Neptuni, Claud. Rapt. Pros. 2, 181: flamma, i. e.
lightning
, Ov. M. 2, 325; cf. ardores, Val. Fl. 6, 53: viae Phocaeae, i. e.
cross-roads
, Sen. Oedip. 772; cf. Phocis, Stat. Th. 1, 64: lingua serpentis, Sen. Med. 687; cf.: motus linguae, Sil. 6, 222: rostrum prorae, id. 6, 358: Sicania, i. e.