Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
марність
←
Belarusian
ма́рнасць
(cognate)
←
Polish
marność
(cognate)
←
Ukrainian
ма́рний
(affix)
←
Ukrainian
-ість
(affix)