Where does “первоисточник” come from?

первоисточник (Russian) comes from Russian исто́чник, from Russian -ни́к, from Proto-Slavic -ьnikъ, from Proto-Slavic -ikъ — *nožь → *nožikъ; *větrъ → *větrikъ; *listъ →...

первоисточник (Russian): origin, primary source

Definitions

  1. origin, primary source

Ancestry of “первоисточник”, step by step

первоисточник traces back through two separate lines of ancestry.

via Russian исто́чник

StepLanguageWordMeaning
1Russianисто́чникspring (water source)
2Russian-ни́кSuffix appended to nominal stems to create a masculine noun, usually denoting a professional, performer, adherent, place, object, tool or a feature
3Proto-Slavic-ьnikъFrom base concept nouns, forms agent nouns who...
4Proto-Slavic-ikъ*nožь → *nožikъ; *větrъ → *větrikъ; *listъ →...

via Russian пе́рвый

StepLanguageWordMeaning
1Russianпе́рвыйfirst
Every word from Proto-Slavic -ikъEvery word from Russian -ни́кEvery word from Proto-Slavic -ьnikъ