befoul
verb (used with object)
to make dirty or filthy; soil; defile; sully.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He existed for her only as a symbol, in this hideous dream called life, that was coiled like a snake about her and was befouling her and stinging her to death.
From Susan Lenox: Her Fall and Rise by David Graham Phillips