An archaic or variant form meaning loss, ruin, or destruction; variant of deperdition.
From Latin deperire (to be lost) plus -tion (forming nouns). This is an alternative formation to 'deperdition,' using a slightly different verb stem, and represents dialectal or regional Latin usage.
'Deperition' and 'deperdition' are variant forms that scholars sometimes disagree about—it's like having two ways to spell an already-rare word, which shows how medieval Latin had regional variations even in technical terminology.
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