SUBSTANTIATE

substantiate. Substantiate, v.t. to make to exist, confirm, realize

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Sub‐stan″ti‐ate (?), v. t. [imp. & p. p. Substantiated (?); p. pr. & vb. n. Substantiating.] 1. 1. To make to exist; to make real. Ayliffe.
2. 2. To establish the existence or truth of by proof or competent evidence; to verify; 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.