legitimate vs valid

legitimate and valid both are adjectives.

Word	Noun	Adjective	Verb	Adverb
legitimate	No	Yes	Yes	No
valid	No	Yes	No	No

legitimate (adjective)	valid (adjective)
of marriages and offspring; recognized as lawful	well grounded in logic or truth or having legal force
in accordance with recognized or accepted standards or principles	still legally acceptable
authorized, sanctioned by, or in accordance with law
based on known statements or events or conditions

legitimate (verb)	valid (verb)
make (an illegitimate child) legitimate; declare the legitimacy of (someone)
show or affirm to be just and legitimate
make legal