* Is a misheard or misspelled word. Double-check the spelling and context in which you heard or saw it.
* Is a regional slang term. It could be a word used in a specific location or community.
* Is a made-up word. Some words are created for fictional purposes or as part of a specific context.
To help me understand the origin of "ratuki," please provide more context:
* Where did you encounter this word? (book, conversation, online, etc.)
* What was the context? (what were people talking about?)
* What language were people speaking?
With more information, I might be able to help you figure out the origin of "ratuki."