Laurasia

Laurasia \loh-ˈrā-zhə\ geographical name: one of two supercontinents resulting from the breakup of Pangaea, comprising what is now North America and Eurasia

Etymology: laur- (from Laurentia) + -asia (from Eurasia)

Laurentia is the name given to the geologically stable continental crust that makes up North America. It derives its name ultimately from the St. Lawrence River.