afterthink

verb

a) To think about after the fact, reflect on

Do not afterthink except for poetic of P.S. reasons. Never afterthink to "improve" or defray impressions, as the best writing is always the most painful personal wrung-out tossed from cradle warm protective mind – tap from yourself the song of yourself, blow! – now! [...]

b) To repent, or feel remorse for; regret

Never fear," said her husband ; " there, sit you down and mend your stockings, and the less you heed us the less you ll have to afterthink."