a. [f. CORROBORATE v. + -ORY.] That tends to corroborate, or has the effect of corroborating; corroborative.
1656. Bramhall, Replic., iv. 161. Coercive and compulsory and coroboratory power.
1883. J. Payn, Kit, I. ix. 152. Collecting corroboratory evidence.
Hence Corroboratorily adv.
1867. F. H. Ludlow, Little Brother, 70. ‘It’s a devilish serious matter!’ corroboratorily added No. 3.
