Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
sprostý
←
Czech
s
(prefix)
←
Czech
prostý
(prefix)
←
Polish
sprośny
(cognate)
→
Polish
sprośny
(cognate)