Retrospect /(?)/

Re·tro·spect

Retrospect

v. i.
  1. To look backward; hence, to affect or concern what is past.
    It may be useful to retrospect to an early period.
    — A. Hamilton.

Retrospect

n.
  1. A looking back on things past; view or contemplation of the past.
    We may introduce a song without retrospect to the old comedy.