A more thorough explanation:

Term: implacitare
Definition: Implacitare is a historical term that means to sue or take legal action against someone. It comes from the Latin word "placitum" which means plea.
Examples: In medieval times, if someone felt they had been wronged, they could implacitare the person they believed was responsible. For example, if a farmer believed that his neighbor had stolen his livestock, he could implacitare the neighbor and take him to court. Another example would be if a merchant believed that a customer had not paid for goods they had received, the merchant could implacitare the customer and sue them for payment. These examples illustrate how implacitare was used in the past to seek justice through legal means.