Retrospect(n.) A looking back on things past; view or contemplation of the past.
Retrospect(v. i.) To look backward; hence, to affect or concern what is past.
Retrospection(n.) The act, or the faculty, of looking back on things past.
Retrospective(a.) Looking backward; contemplating things past; -- opposed to prospective; as, a retrospective view.
Retrospective(a.) Having reference to what is past; affecting things past; retroactive; as, a retrospective law.
Retrospectively(adv.) By way of retrospect.
Words within retrospected