Agree with Joost. If I remember correctly, the "down" part of markdown was meant as a play on words to indicate that, unlike a proper markup language, markdown has a direction and a value system but no defined standard. Since org is definitely not that why must the waters? Just go for clarity.

On Sun, Nov 28, 2021, 17:30 Joost Kremers <joostkremers@fastmail.fm> wrote:

On Sun, Nov 28 2021, Tom Gillespie wrote:
> PS Another brainstormed name: Orgsyn?

Why not just use the term "Org markup"?  It's descriptive and should be
understandable to people familiar with the concept of markup languages.

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Joost Kremers
Life has its moments