My understanding of Japanese language is next to nothing but….
Nikyu Nikyu no Mi doesn't even make sense. The DF's may be a combination of numbers but they're all a combination of two different sets. I'm guessing one set of numerals is the traditional while the other set is the newer/common language?
Nikyu is a combination but from the same set.
Is there any Japanese speakers or people that study Japanese that can elaborate on this?
I had an interesting chat with a Japanese visitor recently. If you say for example Mero (like Mero Mero is love), it would not be understood as love. Whereas when I said well what is Mero Mero? She goes ahh yea now i see where you get that from.
I think you just take the word on its own and dissect it? Not so sure. But good luck, hope to find out what's going on!!