Related Clues:

• Declare to be true
• Affirm to be true
• Speak to
• Vouch for
• Vouch
• Declare under oath
• Bear out
• Affirm, with 'to'
• Certify (to)
• Bear witness (to)
• Warrant, with 'to'
• Give evidence - sounds a trial
• Certify or bear witness
• Give evidence, bear witness
• Declare to be true or genuine