Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Romanian prost
← Proto-Slavic *prostъ (derived)

→ Transylvanian Saxon prostig (mention)
→ Romanian prostie (suffix)
→ Romanian prostime (suffix)
→ Romanian prostălău (suffix)
→ Romanian prostuț (suffix)
→ Romanian prostește (suffix)
→ Romanian prostolan (suffix)
→ Romanian Prostu (mention)