Definition of assertion

The word "assertion" has its roots in the Latin words "assersio" and "asserere," which mean "to declare boldly" or "to profess." In the 15th century, the Latin term "assertio" was borrowed into Middle English as "assertion," retaining its original meaning. Initially, "assertion" referred to the act of declaring or professing something boldly, often with confidence or conviction. Over time, the term evolved to include meanings such as statement, claim, or declaration, especially one that is strong or emphatic. In modern usage, "assertion" can refer to a statement or claim that is supported by evidence or logic, as well as the act of confidently stating or declaring something, often with a sense of conviction or authority. Despite its changes in meaning, "assertion" remains a useful term in a wide range of contexts, from philosophy to everyday communication.