Discredit vs Devalue - What's the difference?

As a noun discredit

is disrepute.

(en verb)

To harm the good reputation of a person; to cause an idea or piece of evidence to seem false or unreliable.

The candidate tried to discredit his opponent.

The evidence would tend to discredit such a theory.

* demean, disgrace, dishonour, disprove, invalidate, tell against

* discreditor

(-)

The act of discrediting or disbelieving, or the state of being discredited or disbelieved.

Later accounts have brought the story into discredit .

A degree of dishonour or disesteem; ill repute; reproach.

* Rogers

It is the duty of every Christian to be concerned for the reputation or discredit his life may bring on his profession.

* (degree of dishonour) demerit

(devalu)

To lower or remove the value of something.

To lose value; to depreciate.

* devaluate