(For other uses, see EIA.) Eia or Eye was a Medieval manor in Middlesex and now part of Central London. A smaller manor called Ebury or Eybury, and the village of Eye Cross, were originally part of the manor of Eia – and derive their names from it. Both Ebury and a corruption of it, Avery, can still be found in the names of local streets and other places. The name Eia is believed to have originated as a latinisation of the Anglo-Saxon toponym eyai, which means "island", in reference to a marsh that once dominated the area.