ICKNIELD STREET. (1) The Saxon name of a prehis toric (not Roman) "Ridgeway"—along the Berkshire downs and the Chilterns, which crossed the Thames near Streatley and ended somewhere near Tring or Dunstable. In places there are traces of a double road, one line on the hills and one in the valley below, as if for summer and winter use. (2) A Roman road which ran through Derby, Lichfield, Birmingham and Alcester is sometimes called Icknield Street and sometimes Rycknield Street.