Protocol

In ancient Greece, a protokollon was the first page of papyrus glued into a manuscript. Greek protokollon = protos (first) + kolla (glue).  
 
Greek protos has its origins in Proto-Indo-European (PIE) pre, per meaning forward, before first. The origins of kolla are unknown.
 
Latin protocollum refers to the table of contents on the first page of a document.
 
The English word prothogol, meaning prologue, appears in the mid-15th century. Prothogall, meaning the first draft of a document or the minutes of a transaction or negotiation, is from the 1540s. Both words are from 13th century French prothocole and Latin protocollum.
 
The French words prothocole, later protocole, were part of the diplomatic language referring to treaties and other agreements between nations. By 1896, the French word protocole also referred to any formula of diplomatic etiquette. The word protocol first appears in English at this time.
 
The use of the word protocol to mean conventional proper conduct is from 1952.
 
Reference: Online Etymological Dictionary, https://www.etymonline.com/
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Published on July 28, 2025 11:14
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