Defile (verb)

1. To make unclean or impure, especially in a moral or spiritual sense.
2. To damage the purity or integrity of something.
3. To violate the sacredness of a place or thing.

Origin:

From old french defiler, "to soil, defile," from latin defilare, "to march through in a line, march past, march over, tread down".

Examples:

1. The dictator defiled the country's history by rewriting it.
2. The protesters defiled the monument with graffiti.
3. The criminal defiled the church by stealing from the collection plate.
4. The vandal defiled the statue by breaking off its nose.
5. The soldier defiled the holy site by desecrating it.