Source : Free On-Line Dictionary of Computing

routeing
     
         (US "routing") /roo'ting/ The process, performed
        by a {router}, of selecting the correct interface and next
        {hop} for a {packet} being forwarded.
     
        This is the British and international standard spelling.
     
        See also {Exterior Gateway Protocol}, {Interior Gateway
        Protocol}.
     
        (2001-05-28)