Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
pogarszać
←
Polish
pogorszyć
(suffix)
←
Polish
ać
(suffix)
→
Belarusian
пагаршаць
(cognate)
→
Ukrainian
погіршувати
(cognate)