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I recently learned that apparently the phenomenon of tea leaves moving up and
down in very hot water is called ジャンピング (See
[example](https://www.youtube.com/watch?v=uMAQfyqF79s)
[videos](https://www.youtube.com/watch?v=4ogDbVm4L_w)). This surprises me a
bit as I would certainly expect that since tea has been around in Japan since
before the word "jumping" could conceivably have been introduced to Japan that
there is an older word to describe this phenomenon (perhaps it was just simply
descriptive). I'm curious as to if such an older word exists and about the
history of when ジャンピング began to be used to describe this phenomenon.
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2021-03-11T00:13:50.550
84547
2021-03-12T18:55:57.587
2021-03-11T00:44:28.227
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question
etymology loanwords
What was the movement of tea leaves called before it was called ジャンピング?
This phenomenon is called
[[対流]{たいりゅう}](https://ja.wikipedia.org/wiki/%E5%AF%BE%E6%B5%81) (convection),
which is a technical term but understood by most adults. ジャンピング is a little-
known alternative name used by black tea fans. The loanword is used simply
because this is important only in the context of black tea. Japanese teas are
traditionally steeped at a much lower temperature range (60-90 °C), and the
movement of tea leaves has not been considered important.
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2021-03-11T10:20:48.477
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2021-03-12T18:55:57.587
2021-03-12T18:55:57.587
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answer