i wonder how far the concept of loaning a plural word, re-analising it as a singular word and adding the native plural ending can go... like what is the word with the most plural endings
think english 'comics' being loaned into russian as a singular word (комикс komiks), then the plural of that is комиксы komiksy same thing with 'rails' -> рельс rel's (nom. sg.) -> рельсы rel'sy (nom. pl.)
I've seen a triple plural with chips/crisps in Qazaq! You have the English plural chips, then Russian plural -ы as чипсы chipsy, then Qazaq plural -лар -lar, so you end up with чипсылар chipsılar.
oh my god
the only example of a double plural that i'm aware of in german is from english cakes -> der Keks (sg) -> die Kekse (pl), with a semantic shift tho
















