Mis-gave is a word that is rarely used in our day-to-day language. It means to regret or to have second thoughts about something. However, there are many synonyms that can be used instead of "mis-gave." These include remorse, repentance, contrition, penitence, ruefulness, and regretfulness. All these words imply a feeling of guilt or sorrow for something that has been said or done. They also suggest a willingness to make amends, to apologize, and to rectify the situation. Using these synonyms for "mis-gave" in your writing or conversations can help you express your thoughts and emotions more effectively and eloquently.