substantiate

verb

1. 1

   solidify, firm, or strengthen

   The president's trip will substantiate good relations with the former enemy country

2. 2

   establish or strengthen as with new evidence or facts

   his story confirmed my doubts

   The evidence supports the defendant

3. 3

   make real or concrete; give reality or substance to

   our ideas must be substantiated into actions

4. 4

   represent in bodily form

   He embodies all that is evil wrong with the system

   The painting substantiates the feelings of the artist