Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Estonian r

→ Estonian kalur (suffix)
→ Estonian juuksur (suffix)
→ Estonian sõdur (suffix)
→ Estonian tuupur (suffix)
→ Estonian õppur (suffix)
→ Estonian häkker (suffix)
→ Estonian pidur (suffix)