Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
darmo
←
Proto-Slavic
*darъmь
(inherited)
→
Polish
darmowy
(suffix)
→
Polish
Darmochwał
(mention)
→
Polish
darmozjad
(mention)
→
Sinte Romani
darmo
(derived)