* It's a misspelling: There might be a similar-sounding word you're thinking of.
* It's a made-up word: Someone might have invented it for a fictional purpose, like a book or game.
* It's a place name: Some locations have unique, less common names. Could you provide more context?
* It's a specific term in a particular field: Perhaps it's a technical term in a specific area of study.
To help me understand what you mean, please provide more information:
* What is the context of the word "Cashelmara"?
* Where did you encounter this word?
With more information, I can help you decipher the meaning!