The best and most convictive argument.
Glanwill.
-- Con*vict"ive*ly, adv. -- Con*vict"ive*ness, n.
Con*vince" (?), v. t. [imp. & p. p. Convinced (?); p. pr. & vb. n. Convincing.] [L. convincere, - victum, to refute, prove; con- + vincere to conquer. See Victor, and cf. Convict.] 1. To overpower; to overcome; to subdue or master. [Obs.]
His two chamberlains
Will I with wine and wassail so convince
That memory, the warder of the brain,
Shall be a fume.
Shak.
2. To overcome by argument; to force to yield assent to truth; to satisfy by proof.
Such convincing proofs and assurances of it as might enable them to convince others.
Atterbury.