Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Czech vydra
← Proto-Balto-Slavic *ūdrāˀ (derived)
← Proto-Indo-European (derived)
← Proto-Indo-European *udrós (mention)
← Proto-Slavic *vydra (inherited)

→ Czech Vydra (mention)
→ Czech vydří (affix)
→ Ancient Greek ὕδρα (cognate)
→ Latvian ūdrs (cognate)