väljajäetuse

I’m not sure what “väljajäetuse” refers to. It doesn’t appear as a standard Estonian term, and it might be a misspelling or a field-specific concept. Could you please clarify the intended meaning or provide the domain (for example, language/linguistics, law, sociology, etc.) or a correct spelling? Once I know the correct context, I can write a concise, neutral wiki-style article under 300 words.