英语词源字典 - 在线词源网站

encrypt (v.)[encrypt 词源字典]: 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.[encrypt etymology, encrypt origin, 英语词源]
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.