Very good Brian
Answer is (as best we know)
ORIGIN OF THE WORD RADIO
From "UNITED STATES EARLY RADIO HISTORY" BY THOMAS H. WHITE


Radio, currently a synonym for "electromagnetic radiation", actually first
came into use before Heinrich Hertz's proof of the existence of radio waves.
Originally "radio" was a general prefix meaning "radiant" or "radiation" --
hence the term "radio-activity" for the alpha, beta, and gamma rays emitted
by decaying atoms. In Europe, some of the persons investigating Hertz's
discovery began using the "radio-" prefix -- for example, in 1890 Edouard
Branly in France called his receiver a "radio-conductor", the October 24,
1902 issue of The Electrician (London) included an article titled "The
Radio-telegraphic Expedition of the H.I.M.S. 'Carlo Alberto'", and a report
in the November 19, 1904 Electrical Review about Belgium marine applications
noted that "radio-telegraphy has entered into the domain of current
practice".


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Keyboard to you


"Brian Hill" wrote in message
...

"Keyboard In The Wilderness" wrote in message
news:QmU7d.41229$aW5.32073@fed1read07...
How did the word "Radio" come about ?

--
Keyboard to you




Hertz's coined the term. I think from radiant or radiation?


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73 and good DXing.
Brian
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A lot of radios and 100' of rusty wire!
Zumbrota, Southern MN
Brian's Radio Universe
http://webpages.charter.net/brianhill/