avouch
verb (used with object)
to make frank acknowledgment or affirmation of; declare or assert with positiveness.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Receive ye the true and public avoucher, witnessing, without any falsehood or flattery, the reward of your good and evil, not like the soothing humble lips of your parasites, which whisper poisons into your ears.
From Old English Chronicles by Various