There’ve been numerous threads about dialectal variations of what people call carbonated beverages. Some regions say “pop”, others “soda”, and then there’s “soda-pop”, “soda-water”, “tonic” and many others. This thread is not about who says what or which way is better.
What I want to know is what was the original word? Did everyone say “soda-pop” at one time, and then different regions shortened it in different ways? Or, did the words evolve independent of each other, and in some cross-over area “soda-pop” become common?
I’ve tried the Oxford English Dictionary, but it gives (apparently) contradictory cites. Any other word-sleuths out there have other sources or ideas?
“Soda”, meaning (carbonated) soda water, dates from 1802.
Pop, meaning “any effervescing beverage, esp. ginger-beer or (later) champagne”, dates from 1812. That first documented usage was:
So my guess is that they developed independently, with “pop” being an onomatopoeic result of “soda,” but were concatenated later on as the phrase “soda pop” to differentiate it from other forms of “pop” (such as champagne, etc.).
So, the evidence from the OED is that “soda-water” was the original term. “pop” came into use next. And then “soda” was used as a shortened form of “soda-water”. (“soda” has other earlier meanings not associated with carbonated beverages.) “soda-pop” was evidently formed much later than the others.
Basically, what peepthis said, correcting for the distinction between “soda” and “soda-water”.