Validate vs Substantiate - What's the difference?

As verbs the difference between validate and substantiate

is that validate is to render valid while substantiate is to verify something by supplying evidence; to authenticate or corroborate.

(validat)

To render valid.

To check or prove the validity of; verify.

* disprove * invalidate

(en-verb)

to verify something by supplying evidence; to authenticate or corroborate

to give material form or substance to something; to embody; to record in documents