👉 Sumage is a legal concept in which a person owes an additional amount of money to another party due to their own actions or inactions, such as negligence, fraud, or intentional misconduct. Sumedness can be determined by proving that one's actions caused harm or damage to the other party. In summary, sumage refers to the situation where someone owes another party extra money because of their own actions or inactions, which is governed by the principle of damages established under law.