The act or process of making something rough; the state of being rough or roughened.
From Latin 'asperatio', derived from 'asperare' meaning to roughen, with the action noun suffix '-tion' added through Romance language evolution. This follows the standard Latin-to-English conversion for abstract nouns.
Asperation as a deliberate process appears in conservation work, where restorers must decide whether to asperate or polish surfaces—a choice that reveals the tension between authenticity and aesthetic appeal in historical object restoration.
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