— corroborative /keuh rob"euh ray'tiv, -euhr euh tiv/ , corroboratory , adj. — corroboratively, corroboratorily , adv. — corroborator , n.
v. /keuh rob"euh rayt'/ ; adj. /keuh rob"euhr it/ , v. , corroborated, corroborating , adj.
v.t.
1. to make more certain; confirm: He corroborated my account of the accident.
adj.
2. Archaic. confirmed.
[ 1520-30; corroboratus ptp. of corroborare to strengthen, equiv. to cor- COR- + robor ( are ) to make strong (deriv. of robor, robur oak (hence, strength); see ROBUST) + -atus -ATE 1 ]
Syn. 1. verify, authenticate, support, validate.