Tending to reduce in value or showing disapproval; having the quality of belittling or undervaluing.
From depreciate with the -ive suffix, which turns verbs into adjectives meaning 'tending to do' or 'of the nature of'; maintains Latin depreciari root.
A 'depreciative remark' about someone's painting and 'deprecatory gesture' (asking forgiveness) share roots but opposite purposes—one tears down, one apologizes.
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