Iz~icki is a
locational surname, referring to ownership or origin from a locality named something on the order of Iz~yce. Such toponyms would have as their root either Iz~ak = Isaac, or Iz~yk a hypocoristic form of Izydor = Isidore.
(1) Arms Bon'cza, recorded 1584; from Iz~yce in the district of Lublin (late 18th century to 1919 Russia) and from the district of Oszmiany. -sources: Paprocki, Niesiecki, Uruski, Borkowski, Heraldic Office of the Congress Kingdom.
RootsWeb: HERBARZ-L RE: Izycki
Genealogia dynastyczna http://www.jurzak.pl/