Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
prawidło
←
Polish
prawo
(suffix)
←
Polish
-i-
(suffix)
←
Polish
dło
(suffix)
←
Proto-Slavic
*pravidlo
(inherited)
→
Polish
prawidłowy
(suffix)