Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
ciosak
←
Polish
ciosać
(suffix)
←
Polish
ak
(suffix)
←
Polish
ciesak
(doublet)
→
Polish
ciesak
(doublet)