To remove bruises from something or to heal bruised tissue; to make something no longer bruised.
From 'de-' (remove) + 'bruise' (contusion, damaged area). An archaic or rare medical term, more common in older herbalism and medical texts than modern usage.
Old medical texts are full of remedies to 'debruise' injuries with herbal poultices and massage, showing that people understood that bruising was a type of damage that could be treated and healed rather than just accepted.
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