protocol
n//ˈpɹoʊtəˌkoʊl//protokoll, protokol, protokollföra
(international law, now, _, rare) An official record of a diplomatic meeting or negotiation; later specifically, a draft document setting out agreements to be signed into force by a subsequent formal treaty. [from 17th c.]
The official rules and guidelines for heads of state and other dignitaries, governing accepted behaviour in relations with other diplomatic representatives or over affairs of state. [from 19th c.]
(computing) A set of formal rules describing how to transmit or exchange data, especially across a network. [from 20th c.]
(obsolete, intransitive) To make or write protocols, or first drafts; to issue protocols.