\Eyre\ ([^a]r), n. [OF. erre journey, march, way, fr. L.
iter, itineris, a going, way, fr. the root of ire to go. Cf.
{Errant}, {Itinerant}, {Issue}.] (O. Eng. Law)
A journey in circuit of certain judges called justices in
eyre (or in itinere).
Note: They were itinerant judges, who rode the circuit,
      holding courts in the different counties.