Removed words keep coming back
Can someone explain why words that I remove from the dictionary keep coming back automatically after a few minutes or hours?
For example, I am trying to remove the all caps word OK, because no one spells it like that anymore and I personally dislike it.
Instead, I have the word Ok or ok in my dictionary.
However, it keeps coming back every time and always defaults back to the obnoxious OK.
How can I stop it from coming back please. I've been trying to get rid of it for months now. Never used to be a problem in my previous account.