Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old Norse bólginn
← Proto-Indo-European *bʰelǵʰ- (root)
← Proto-Indo-European *bʰelǵʰ- (derived)

→ Faroese bólgna (mention)
→ Icelandic bólgna (mention)
→ Old Norse bólgna (mention)