'mail-related' originates from the English word 'mail,' which refers to the system of sending letters and packages, combined with the suffix '-related,' indicating a connection or association.

The term 'mail' has been used in English since the 12th century, originally referring to a bag or pouch. The modern sense of 'mail' as a system of communication developed in the 17th century.

Initially, 'mail' referred to a physical bag or pouch, but over time it evolved to mean the system of sending letters and packages.