substantiate
Cross references:
1. confirm
sub.stan.ti.ate \s*b-'stan-che--.a-t\ \-.stan-che--'a--sh*n\
\-'stan-che--.a-t-iv\ vt 1: to impart substance to 2: to put into concrete
form : EMBODY 3: to establish by proof or competent evidence : VERIFY {~
a charge} - sub.stan.ti.a.tion n
Webster's English Dictionary