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Webster 1828 Edition

ppr.

Looking back on; seeing again; revising; re-examining; inspecting, as an army; critically examining and remarking on.

reviewing

reviewing ‎(plural reviewings)

The act by which something is reviewed, or thought about again; a mental review.
- 1995, Iain Banks, Whit
  Sleep came for me eventually, after many more reviewings of the long, involved and fractious day, and many more attempts to stop thinking about all the mysteries surrounding me.