Current translation for Boreham Street
  bore derived from boring - place where a tidal bore takes place - narrow point of a river between two hills
  ham derived from hjem - home - A village or location originally found in valleys with sea access hence Home for the Saxons - in later years this derivation changed to mean near water.
  street derived from via strata - originally from the latin via strata(high paved road) -Old English stret (Mercian, Kentish), stræt (West Saxon)
Place name translation provided by saxonhistory.co.uk