Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
marny
←
Proto-Slavic
*marьnъ
(inherited)
→
Polish
marnować
(suffix)
→
Polish
marność
(affix)
→
Polish
marnie
(affix)
→
Polish
marnieć
(affix)
→
Ukrainian
марний
(cognate)