Affirmed the truth of something (8)
I believe the answer is:
attested
(Other definitions for attested that I've seen before include "Confirmed" , "Affirmed to be true" , "Provided evidence" , "Affirmed by oath" , "Bore witness to" .)
I believe the answer is:
attested
(Other definitions for attested that I've seen before include "Confirmed" , "Affirmed to be true" , "Provided evidence" , "Affirmed by oath" , "Bore witness to" .)