Sub-stān’ti-āte, v. t.
(-shī-āt), v. t. [imp. & p. p. SUBSTANTIATED; p. pr. & vb. n. SUBSTANTIATING.] [It. sustanziare, sostanziare, Sp. substanciar, sustanciar.]
Sense 1. To make to exist. Apliffe.
Sense 2. To establish by proof or competent evidence; to verify; to make good; as, to substantiate a charge or allegation; to substantiate a declaration.
Observation is, in turn, wanted to direct and substantiate the course of experiment. Coleridge.