英语词源字典 - 在线词源网站

cipher [cipher 词源字典]: cipher: [14] The central meaning of cipher is ‘zero’ (a word to which it is related); its use since the 16th century in connection with encrypted communications derives from the fact that in their earliest forms such codes usually consisted of numbers representing letters, and cipher had by then broadened in use from ‘nought’ to ‘any numeral’. It entered English through Old French cifre, which came via medieval Latin cifra from Arabic sifr (source of English zero); this was a nominal use of an adjective meaning ‘empty’.
=> zero[cipher etymology, cipher origin, 英语词源]
encrypt (v.): 1968 in telecommunications, a back-formation from encryption (1964), or from en- (1) + crypt (n.) on the notion of "hidden place" (see crypto-). Related: Encrypted; encrypting.
FCC: U.S. Federal Communications Commission, formed 1934 from the former Federal Radio Commission.
modulate (v.): 1610s, in music, back-formation from modulation, or else from Latin modulatus, past participle of modulari. General sense from 1620s. In telecommunications from 1908. Related: Modulated; modulating.
telecommunication (n.): 1932, from French télécommunication (see tele- + communication). Related: Telecommunications.
Bluetooth: "A standard for the short-range wireless interconnection of mobile phones, computers, and other electronic devices", 1990s: said to be named after King Harald Bluetooth (910–85), credited with uniting Denmark and Norway, as Bluetooth technology unifies the telecommunications and computing industries.
phreaking: "The action of hacking into telecommunications systems, especially to obtain free calls", 1970s: alteration of freaking (see freak). The change from f- to ph- was due to association with phone¹.