Hyperborean

(89, 124), a. [Fr. hyperboréen, Lat. hyperboreus, Gr. ὑπερβόρεος, ὑπερβορείος, beyond boreas, i. e., in the extreme north, from ὑπέρ, over, beyond, and βορéas. See BOREAS.] Northern; belonging to, or inhabiting, a region very far north; most northern; hence, very cold; frigid.