IPA: /kənˈtrɪʃən/
KK: /kənˈtrɪʃən/
A feeling of deep regret or sorrow for having done something wrong.
After realizing the harm he caused, he felt a strong sense of contrition.
Contrition is formed from "con-" (meaning together) and "terere" (meaning to rub or grind). The word describes the act of grinding together one's feelings of remorse or sorrow for wrongdoing, reflecting a deep sense of regret.
Think of feeling remorse 'together' ('con-') with the act of 'grinding' ('terere') your feelings of guilt — that's why contrition means deep regret.