Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
Piontek
←
Polish
Piątek
(mention)
←
Polish
piątek
(mention)
←
Polish
piąty
(suffix)
←
Polish
ek
(suffix)
→
English
Piontek
(derived)