Nearctic
adjective
Ne·arc·tic ˌnē-ˈärk-tik 
-ˈär-tik
: of, relating to, or being the biogeographic subregion that includes Greenland and North America north of tropical Mexico
Word History
Etymology
ne- + arctic entry 1
Note: Introduced, along with neotropical, ethiopian entry 2, and palearctic, by the British zoologist Philip Sclater (1829-1913) in "On the general Geographical Distribution of the Members of the Class Aves [read June 16th, 1857]," Journal of the Proceedings of the Linnean Society, Zoology, vol. 2 (1858), pp. 130-45.
First Known Use
1858, in the meaning defined above