Vitalik Buterin: @gakonst“blinis”这个词不必要地加倍了复数； “blini”（блины）中的“i”已经是复数结尾。 但另一方面… 俄语单词тулзы（“tulzy”）是“工具”的俚语，将俄语复数词尾添加到已经有“s”的单词上。

原推：@gakonst The word “blinis” unnecessarily doubles the plural; the “i” in “blini” (блины) is already a plural ending.

But on the other hand…

The Russian word тулзы (“tulzy”) is slang for “tools”, adding the Russian plural ending onto a word that already has an “s”.
https://twitter.com/VitalikButerin/status/1543173728342888448