Lewis Short
(adjective) : Gordĭus, ii, m., = Γόρδιος
* A king of Gordium, in Phrygia Major, famous for the inextricable knot on his chariot, which Alexander the Great cut with his sword, Curt. 3, 1, 15 sqq.; Just. 11, 7, 13 sqq.—Hence, Gordĭus, a, um, , of or belonging to Gordius: nodus,i. e. an insoluble problem,Amm. 14, 11, 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary