irtonaiset

I’m ready to write a wiki-style article, but I can’t find a widely documented entry for “irtonaiset.” To ensure accuracy, please confirm the intended scope:

- Is irtonaiset a real term from Finnish folklore, ethnography, or linguistics? If so, please share any sources or context.

- Is this a fictional or constructed term for a story or game? If yes, tell me the key details (origin, culture, practices, notable people, etc.).

- Could it be a misspelling or regional variant of another term?

If you want, I can proceed with a concise, neutral stub as a fictional entry, once you specify the direction and any details you’d like included.