Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
czerep
←
Polish
trzop
(doublet)
←
Proto-Slavic
*čerpъ
(derived)
←
Ukrainian
череп
(borrowed)
→
Polish
trzop
(doublet)