Definition of signature

The word "signature" originates from the Latin signing phrase "signare," which means "to sign." This Latin word is also the source of the English word "sign." The term "signature" was first used in the 14th century to refer to a person's mark or name written as a symbol of authentication, agreement, or ownership. In medieval times, a signature was often a unique mark, crest, or emblem that identified an individual or family. The term gained its modern connotation with the rise of formal contracts and agreements, where a signature served as a binding seal to the terms and conditions. Through time, the concept of a signature has evolved to encompass various forms, including handwritten or typed names, electronic signatures, and even digital footprints. Today, a signature is a universal symbol of authorization, approval, and personal identity.