When you draw graffiti over a beautiful piece of art, this is an example of when you deface the art.
You get the Finnish state flag by defacing the national flag with the state coat of arms placed in the middle of the cross.
Origin of deface
- Middle English defacen from Old French desfacier des- de- face face face
From American Heritage Dictionary of the English Language, 5th Edition
- Middle English, "to obliterate," from Old French desfacier (“mutilate, destroy, disfigure”), from des- (“away from”) (see dis-) + Vulgar Latin *facia