Cleaned of ash; having had the ash removed.
Past participle of deash, formed with the -ed suffix. Follows standard English verb conjugation patterns where -ed marks both past tense and adjective forms.
When we add -ed to a verb, it can become an adjective describing something that has already been acted upon—that's why a 'deashed fireplace' is one that's already been cleaned, not the action of cleaning itself.
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