Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
aczkolwiek
←
Czech
ačkoli
(cognate)
←
Polish
acz
(suffix)
←
Polish
kolwiek
(suffix)
→
Czech
ačkoli
(cognate)