If you deprecate something, you criticize it. He deprecated the low quality of entrants to the profession. to strongly disapprove of or criticize something (deprecari , from precari )
belittle, as in : Have you noticed that he seems to deprecate himself just so we have to compliment him?
To express earnest disapproval of This term is used to refer to obsolete structures that ought not to be used but remain valid
To pray against, as an evil; to seek to avert by prayer; to desire the removal of; to seek deliverance from; to express deep regret for; to disapprove of strongly