Present participle of 'besmut'; the action of staining or soiling with smut or soot.
Gerund form of 'besmut,' created by adding '-ing' to the base verb, allowing it to function as a noun or continuous action descriptor.
Environmental historians use 'besmutting' to describe how industrial activities blackened cities—it's become almost an academic term for the literal darkening of landscapes by coal and factories.
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