deface
verb (used with object)
to mar the surface or appearance of; disfigure.
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Meanwhile, all the agencies of travel-stain had been defacing both.
From Cedar Creek From the Shanty to the Settlement by Elizabeth Hely Walshe