validate vs authorise

validate and authorise both are verbs.

Word	Noun	Adjective	Verb	Adverb
validate	No	No	Yes	No
authorise	No	No	Yes	No

As verbs, authorise is a hypernym of validate; that is, authorise is a word with a broader meaning than validate:

Other hypernyms of validate include authorize, clear, pass.

validate (verb)	authorise (verb)
make valid or confirm the validity of	grant authorization or clearance for
prove valid; show or confirm the validity of something	give or delegate power or authority to
give evidence for
declare or make legally valid