Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
lidový
←
Czech
lid
(suffix)
←
Czech
ový
(suffix)
←
Polish
ludowy
(cognate)
←
Slovak
ľudový
(cognate)