I. ˈrau̇-tər noun
Date: 1818
: one that routs: as
a. : a routing plane
b. : a machine with a revolving vertical spindle and cutter for milling out the surface of wood or metal
II. ˈrü-tər, ˈrau̇- noun
Date: 1903
: one that routes ; especially : a device that mediates the transmission routes of data packets over an electronic communications network (as the Internet)
III. ˈrü-tər, ˈrau̇- noun
Etymology: route (race of a mile or more)
Date: circa 1951
: a horse trained for distance races