Where does “nejak” come from?

nejak (Serbo-Croatian) comes from Czech jak, from Old Czech jak, from Proto-Slavic jako, from Proto-Slavic jakъ, from Proto-Slavic jь, from Proto-Balto-Slavic iś, from Old Polish ić, from Proto-Slavic jьti — to go.

nejak (Serbo-Croatian): weak, feeble

Definitions

  1. weak, feeble

Ancestry of “nejak”, step by step

nejak traces back through two separate lines of ancestry.

via Czech jak

StepLanguageWordMeaning
1Czechjakhow; as; yak
2Old Czechjak
3Proto-Slavicjakohow, in which way
4Proto-Slavicjakъof this kind; of what/which kind
5Proto-Slavicthis; he
6Proto-Balto-Slavicthis
7Old Polishto go
8Proto-Slavicjьtito go
9Proto-Balto-Slaviceiteito go
10Proto-Indo-Europeanh₁éytito go, to be going
11Proto-Indo-Europeanh₁ey-to go

via Serbo-Croatian jȃk

StepLanguageWordMeaning
1Serbo-Croatianjȃkstrong
Every word from Proto-Indo-European h₁ey-Every word from Proto-Indo-European h₁éytiEvery word from Proto-Balto-Slavic eitei