A family name that is generally passed down from generation to generation (via males of the family in Western culture). Women, traditionally (but not quite so much these days) often adopt
the surname of the man they marry. In modern culture it's fine
for a male to adopt the females surname (though not that common), for couples to hyphenate
their existing surnames into a new surname eg. if mary jones marries john smith
they may join their surnames to be jones-smith or... possibly, it's fine to just create a whole new name (also not that common). Most commonly it is fine for each person to keep their own surnames and then fight when the children come along as to whose surname the children will get.
A last name or family name such as Archibald, Oppenheimer
, Marriot, Duke, Carnegie
, etc. These names are usually reminiscent of royal British or royal Welsh surnames and derives from the names of historical business moguls such a Rockefeller.
Sometimes when you first hear these names, you think of MONEY. However, people who aren't rich and have a rich-sounding surname do exist.