What does the O in OK stand for?

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Tags

1. #election
2. #nickname
3. #abbreviation
4. #probably
5. #refers
6. #korrect
7. #democratic
8. #birth
9. #boosters
10. #further
11. #president
12. #popularized
13. #kinderhook
14. #buren
15. #slogan
16. #martin
17. #village