Lewis Short
(adjective) : trĭfĭdus, a, um, 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. triangular,Claud. Cons. Mall. Theod. 203.
Charlton T. Lewis, Charles Short, A Latin Dictionary