Where does “dunajský” come from?
dunajský (Slovak) comes from Slovak Dunaj, from Proto-Slavic Dunavь, from Gothic 𐌳𐍉𐌽𐌰𐍅𐌹, from Proto-Germanic Dōnawjaz, from Proto-Celtic Dānowyos, from Proto-Celtic Dānu, from Proto-Indo-European dʰenh₂- — to set in motion; to flow.
dunajský (Slovak): Danubian
Ancestry of “dunajský”, step by step