deprecate

Etymology

From Latin dēprecātus, past participle of dēprecārī (“to pray against (a present or impending evil), pray for, intercede for (that which is in danger), rarely imprecate”), from dē- (“off”) + precārī (“to pray”).

verb

1. (transitive) To belittle or express disapproval of.
   He deprecates any praise of his own merits.
   They deprecated the attempt to deny aid to homeless people.
   She deprecated any action which might disturb the peace.
   Prior to the 1980s, Australian English had been widely deprecated by Australians themselves, principally as a result of a sense of inferiority known as "cultural cringe". 2012, James Lambert, “Beyond Hobson-Jobson: A new lexicography for Indian English”, in World Englishes, page 295
2. (transitive, chiefly computing) To declare something obsolescent; to recommend against a function, technique, command, etc. that still works but has been replaced.
   The 'bold' tag has been deprecated in favour of the 'strong' tag.
   It is still supported but strongly deprecated.
   A deprecated function works in the currently released version of Perl 5 but may not be supported in future releases of Perl 5. 2003, Dave Evans et al., Perl, CGI, and JavaScript Complete, Sybex
3. (archaic, transitive) To pray against.
   And in deprecating of Evil, we make an humble Acknowledgement of Guilt; and of God’s Juſtice in chaſtizing, as well as Clemency, in ſparing the Guilty. 1701, Nehemiah Grew, Cosmologia Sacra, London: W. Rogers, S. Smith, and B. Walford, page 126
   […], though the Temporal Judgments which We Deprecate, are not remov’d. 1712, George Smalridge, A Sermon, Preach’d at the Royal Chapel at St. James’s on Wedneſday, January the 16th, 1711/12, London: Jonah Bowyer, page 18
4. (archaic, transitive) To regret deeply.