Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Swedish eko
← Ancient Greek ἠχώ (derived)

→ Swedish eka (link)
→ Swedish ekonomi (confix)
→ Swedish ekologi (confix)
→ Swedish ekolog (confix)
→ Swedish ekonom (prefix)
→ Swedish ekoturism (prefix)
→ Swedish ekolod (compound)
→ Swedish ekosystem (prefix)
→ Swedish ekolali (suffix)
→ Swedish ekobrott (prefix)
→ Swedish ekokammare (compound)