Affected by or containing an abscess, which is a pocket of pus that forms in infected tissue.
From 'abscess' (from Latin 'abscessus,' past participle of 'abscedere' meaning 'to go away,' as pus 'goes away' from the tissue) plus '-ed' to create an adjective.
Our ancestors called abscesses 'postumes' because they thought the pus was forming from 'putrefaction'—they didn't realize bacteria created the infection; they just saw decomposition happening inside the body.
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