diarism en · NOUN
Etymology
From diary + -ism.
Meanings
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(uncountable) The practice of writing a diary.
Double-entry bookkeeping, and the concurrent rise of the European paper industry led to new writing practices — graphomania, diarism, and obsessive spiritual confession — and to a balance-oriented worldview […]
2007, Elif Batuman, The Windmill and the Giant: Double-entry Bookkeeping in the Novel: