blue blood

From the medieval European belief that royalty and nobility had blue blood; the elite had enough power and wealth that they could afford to have peasants and the urban poor do their dirty work for them- since the aristocrats were able to stay inside and avoid long hours in the fields (and the sunlight), they were often so pale that their blue veins showed under their translucent skin, thus leading people to believe that their blood was blue.

Now it generally refers to people from old money: families who have been wealthy aristocrats for generations on generations.

Translated from the old Spanish phrase "sangre azul", blue blood derives from the Medieval belief in Europe (among other places) that the blood of the royalty and nobility was blue; since the royal family and aristocrats were wealthy and powerful enough to pay commoners to labor in the fields for them, their skin was translucent and pale enough for their blue veins to stand out.

It also refers to old money families: families that have been aristocrats for many generations.

Comes from the medieval belief that aristocratic blood was blue. Usually used talking about nobelty and royal family members.

This means that you come from a wealthy background (old money).

family generations who served as law enforcement officers.

the elite, wealthy,aristocratic.
comes from when the aristocrats used iron cutlery to eat, the exposure to bad quality iron eventually made their blood blue.
normaly refers to english.

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