Sub*stan"ti*ate (?), v. t. [imp. & p. p. Substantiated (?); p. pr. & vb. n. Substantiating.]
To make to exist; to make real.
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.
© Webster 1913.