Answer: atteststo

AnswerCrossword Clue
ATTESTSTOVouches for
ATTESTSTOCorroborates
ATTESTSTOCorroborates, in court
ATTESTSTOWarrants
ATTESTSTOVerifies
ATTESTSTOSwears by
ATTESTSTOConfirms
ATTESTSTOCertifies
ATTESTSTOSubstantiates