Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
kupować
←
Polish
kupić
(suffix)
←
Polish
ować
(suffix)
→
Polish
kupowanie
(suffix)
→
Polish
skupować
(affix)
→
Ukrainian
купувати
(cognate)