Where does “неосновательность” come from?

неосновательность (Russian) comes from Russian основатель, from Russian -тель, from Proto-Slavic -teľь, from Proto-Slavic -jь, from Proto-Indo-European yós, from Proto-Finnic wiša, from Proto-Indo-Iranian wišás, from Proto-Indo-European wisós — fluidity, slime, poison; poison; poison; slime;...

неосновательность (Russian): unthoroughness, baselessness

Definitions

  1. unthoroughness, baselessness

Ancestry of “неосновательность”, step by step

StepLanguageWordMeaning
1Russianосновательfounder
2Russian-тель-er
3Proto-Slavic-teľьDeverbative, forms agent nouns from the...
4Proto-Slavic-jьAdjectival inherited from the Caland roots,...
5Proto-Indo-Europeanyósthat, who, which
6Proto-Finnicwiša
7Proto-Indo-Iranianwišáspoison, venom
8Proto-Indo-Europeanwisósfluidity, slime, poison; poison; poison; slime;...
Every word from Proto-Indo-European wisósEvery word from Proto-Indo-Iranian wišásEvery word from Proto-Finnic wiša
неосновательность — Etymology, Origin & Word History | Etymology Explorer