disavow
verb (used with object)
to disclaim knowledge of, connection with, or responsibility for; disown; repudiate.
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.
Rather she was disavowing the promise to “be faithful and bear true allegiance to Her Majesty Queen Elizabeth the Second, Queen of Canada, Her Heirs and Successors”.
From The Guardian ● Mar. 31, 2016