Semi-, Hemi-, Demi-: What's the Difference?

English has a number of prefixes that come from the concept of “half.” Why do we have so many? And what’s the difference between them?

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What is the difference between semi and demi hair color? - Quora

What is the origin of musical words like semiquaver, demisemiquaver, and hemidemisemiquaver? Are there parallel uses of semi, demi, and hemi outside music? - Quora

🆚What is the difference between hemi- and semi- and demi- ? hemi- vs semi- vs demi- ?

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hemidemisemiquaver

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