early 17th cent. (in the sense 'pray against'): from Latin deprecat- 'prayed against (as being evil'), from the verb deprecari, from de- (expressing reversal) + precari 'pray'
用法
The similarity of spelling and meaning of deprecate and depreciate has led to confusions in the use, with deprecate being used simply as a synonym for depreciate in the sense ‘disparage or belittle’. This use is now well established and is widely accepted in standard English