* It's a misspelling. Perhaps you meant "kingdom" or another related word.
* It's a regional or dialectal word. If you heard it in a specific context, you might provide more information about where or from whom you heard it.
* It's a made-up word. Sometimes people create new words, especially in creative writing or online communities.
Please provide more context or information about where you encountered the word "mumlikat" so I can help you understand its meaning.