Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Celtic *Dānu

→ English Danube (mention)
→ English Don (derived)
→ English Doncaster (derived)
→ Old English Donua (mention)
→ Bulgarian Дунав (mention)
→ Catalan Danubi (mention)
→ Czech Dunaj (mention)
→ German Donau (mention)
→ Greek Δούναβης (mention)
→ Spanish Danubio (mention)
→ French Danube (mention)
→ Irish Danóib (mention)
→ Italian Danubio (mention)
→ Latin Danubius (mention)
→ Macedonian Дунав (mention)
→ Norwegian Bokmål aberdeen angus (derived)
→ Polish Dunaj (mention)
→ Portuguese Danúbio (mention)
→ Romanian Dunăre (mention)
→ Russian Дунай (mention)
→ Serbo-Croatian Dunav (mention)
→ Serbo-Croatian Дунав (mention)
→ Slovak Dunaj (mention)
→ Slovene Dunaj (mention)
→ Ukrainian Дунай (mention)