charter

Charter goes back to Latin charta, "paper, document," a word borrowed from Greek khartes. Greek used khartes for a sheet of papyrus and then for writing material more broadly. The borrowing was already established in Roman usage by the 1st century BCE. At first the word named the material before it named the legal act.

In late Latin and medieval administrative writing, charta often meant a written record, deed, or formal grant. As kings, bishops, and monasteries issued documents, the physical sheet became the legal instrument itself. By the 8th and 9th centuries, Latin charters preserved land transfers, privileges, and liberties across western Europe. The word was now attached to authority on parchment.

Old French developed chartre and charte from the Latin form, and Anglo-Norman carried related forms into England after 1066. Middle English adopted charter in the 13th century for a formal written grant of rights or privileges. Magna Carta of 1215 made the document sense famous, even though its title used the Latin word carta. English then widened charter to corporate and municipal privileges granted by authority.

Modern charter still means a formal document granting rights, powers, or status, and it has also developed verb senses such as hiring a ship or plane. Those later commercial senses grew from permission granted by document. The legal paper became the licensed action. Charter is still a document word at heart, even when no paper is visible.