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

→ English boln (derived)
→ Middle English bolnen (derived)
→ Faroese bólgna (inherited)
→ Icelandic bólgna (inherited)