Where does “zvjezdonauk” come from?
zvjezdonauk (Serbo-Croatian) comes from Serbo-Croatian zvijézda, from Proto-Slavic gvězda, from Proto-Balto-Slavic *źwaisdā́ˀ, from Proto-Indo-European *ǵʰwoysdʰ-.
zvjezdonauk (Serbo-Croatian): astronomy
Ancestry of “zvjezdonauk”, step by step