1760, "embodiment;" 1832, "the making good of a statement, the act of proving," noun of action from substantiate.
Entries linking to substantiation
substantiate v.
1650s, "to make real, to give substance to," from Modern Latin substantiatus, past participle of substantiare, from Latin substantia "being, essence, material" (see substance). Meaning "to demonstrate or prove" is attested from 1803. Related: Substantiated; substantiating.