Something that chaps or causes cracks; a person or thing that causes skin to become rough and cracked.
From chap (to crack) + -er (agent noun suffix, indicating something that does the action). Related to Middle Dutch and Middle English terms for cracking.
Cold, dry wind is the ultimate chapper—it's why medieval people had elaborate remedies for chapped skin, from animal fats to herbal salves, making winter skincare a serious practical concern.
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