• n. 協議；草案；禮儀
• vt. 擬定
• vi. 擬定

proto-,原始的，最早的，-col,膠，詞源同glue,collagen.即最早粘上去的，引申詞義協議，草案，后引申詞義官方文件，特別用于指政府外交部的官方文件，外交禮儀，后詞義通俗化。

protocol

protocol: [16] Protocol originally denoted an ‘official record of a transaction’. Not until the end of the 19th century, as a reborrowing from French, did it come to be used for ‘rules of etiquette’ (the semantic link is an intermediate sense ‘draft of a treaty or other diplomatic document’, which led to its use in French for the ‘department in charge of diplomatic etiquette’). It goes back via Old French prothocole and medieval Latin prōtocollum to Greek prōtókollon, a compound formed from prótos ‘first’ and kólla ‘glue’ which meant ‘flyleaf glued to the front of a book giving a list of its contents’.
=> colloid

protocol (n.)

1540s, as prothogall "draft of a document," from Middle French prothocole (c. 1200, Modern French protocole), from Medieval Latin protocollum "draft," literally "the first sheet of a volume" (on which contents and errata were written), from Greek protokollon "first sheet glued onto a manuscript," from protos "first" (see proto-) + kolla "glue."

Sense developed in Medieval Latin and French from "official account" to "official record of a transaction," to "diplomatic document," and finally, in French, to "formula of diplomatic etiquette." Meaning "diplomatic rules of etiquette" in English first recorded 1896, from French; general sense of "conventional proper conduct" is from 1952. "Protocols of the (Learned) Elders of Zion," Russian anti-Semitic forgery purporting to reveal Jewish plan for world domination, first published in English 1920 under title "The Jewish Peril."

1. According to protocol, he first reported to the Director of the hospital.

根據禮節，他先向醫院院長報到。

來自柯林斯例句

2. a breach of protocol

違反外交禮節

來自《權威詞典》

3. Were the seating arrangements for the dinner party according to protocol?

餐會的坐位安排是根據禮節的需要 嗎 ?

來自《現代漢英綜合大詞典》

4. We must observe the correct protocol.

我們必須遵守應有的禮儀.

來自《簡明英漢詞典》

5. The statesmen signed a protocol.

那些政治家簽了議定書.

來自《簡明英漢詞典》