Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
żleb
←
Polish
żłób
(doublet)
←
Slovak
žleb
(borrowed)
←
Proto-Slavic
*žȇlbъ
(derived)
→
Polish
żłób
(doublet)