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deprecation (n.)

c. 1500, "prayer to avert evil," from Middle French deprécation, from Latin deprecationem (nominative deprecatio), from past participle stem of deprecari "plead in excuse, avert by prayer," literally "to pray (something) away," from de- "away" (see de-) + precari "to pray" (from PIE root *prek- "to ask, entreat"). Sense of "disapproval" is first attested 1610s.