attestant,ppl.a.andn.|əˈtɛstənt| [ad. L. attestānt-em, pr.pple. of attestāri to attest: see -ant.] A.ppl.adj. Attesting, bearing witness. B.n. One who attests (by signature), an attester. 1880H. Coote Gild of Knts. 8, A MS. deed to which these knights are attestants.