1 [with object] provide or serve as clear evidence of:his status is attested by his becoming an alderman [no object]:his numerous drawings of babies attest to his fascination with them
[no object] declare that something exists or is the case:I can attest to his tremendous energy [with clause]:the deceased’s solicitor attested that he had been about to institute divorce proceedings
witness or certify formally:the witnesses must attest and sign the will in the testator’s presence
2 [no object] historical enrol as ready for military service:unfortunately for him, he attested
[with object] recruit (someone) for military service by putting them on oath to serve if called upon:2,000,000 men were attested under this system
