validate

verb

1.
declare or make legally valid
formalise formalize
Antonym:
invalidate
2.
prove valid; show or confirm the validity of something
NHG beweisen NL bewijzen proving
Event:
validation
Antonym:
invalidate
Derived from:
validation validatory
3.
give evidence for
corroborate
Event:
validation
Derived from:
validation validatory
4.
make valid or confirm the validity of
Antonym:
invalidate