scrumption
/ˈskrʌm.pʃən/Definitions
1. noun
A feeling of deep regret or guilt for something not done, often accompanied by a strong desire to correct the omission.
“Her scrumption over the missed opportunity had been weighing on her mind for weeks.”
2. verb
To feel deep regret or guilt for something not done.
“She scrumpted over not taking the risk, realizing it was her best chance.”