Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Polish
pierz
←
Proto-Slavic
*pьpь̀rь
(inherited)
←
Old Polish
(mention)
←
Old Polish
(mention)
→
Polish
piernik
(derived)