ruisviljakaks
Ruisviljakaks is a term that appears to be a combination of Finnish words. "Ruis" translates to rye, and "viljakaks" does not form a standard or commonly recognized Finnish word. It's possible it is a misspelling or a very specific, perhaps colloquial, term.
If "viljakaks" is intended to refer to "vilja" (grain) and "kaks" (two), then "ruisviljakaks" might conceptually
Further clarification on the origin or intended meaning of "viljakaks" would be necessary to provide a more