Definition of the word undated

The origin of the word "undated" can be traced back to the late 18th century. At that time, documents were often dated using a system called "calendar style" or "old style," which used a different dating system than the one we use today. When a document did not include a date using this system, it became known as "undated." The prefix "un-" is used to indicate the absence of something. In this case, it is used to indicate that the document is "un-dated," or does not have a date. The word "undated" first appeared in print in the late 18th century, and its use has become increasingly common over time as the use of dating systems has become more standardized. It is now a widely recognized term in English and is commonly used in various contexts, including legal, financial, and historical documents.