ümbrus

Could you please specify what you mean by "ümbrus"? The term could refer to contexts such as language (a word in a particular language), a place, a person, a fictional concept, or something else. If you don’t have a specific context, I can draft a neutral, concise wiki-style stub that treats "ümbrus" as a term with uncertain or domain-specific usage and propose sections like Etymology, Usage, and References. Let me know which direction you’d prefer.