n. [ Cf. F. corroboration. ] 1. The act of corroborating, strengthening, or confirming; addition of strength; confirmation; as, the corroboration of an argument, or of information. [ 1913 Webster ]
2. That which corroborates. [ 1913 Webster ]
n. [ LL. roboratio. ] The act of strengthening. [ Obs. ] Coles. [ 1913 Webster ]