The act of cleansing or wiping away impurities, particularly in medical or therapeutic contexts.
A variant or alternative form of 'abstersion', derived from Latin 'abstergere' (to wipe away); both forms appear in Renaissance medical literature but with slightly different frequencies in different regions and texts.
This word is so obscure that even the variation between 'abstersion' and 'abstertion' shows how unstable technical terminology was before modern standardization—medieval scholars invented forms freely, creating multiple 'correct' versions.
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