Lewis Short
(adjective) = ἀρκτῷος: arctōus, a, um, , = , prop.
* Pertaining to arctos (q. v.); hence, poet., northern (syn.: arcticus, aquilonius, Borealis),Mart. 5, 68; 10, 6, 2; Luc. 1, 53; 10, 250; Sen. Oedip. 604; id. Herc. Oet. 1566.
Charlton T. Lewis, Charles Short, A Latin Dictionary