Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
гладкість
←
Belarusian
гла́дкасць
(cognate)
←
Polish
gładkość
(cognate)
←
Russian
гла́дкость
(cognate)
←
Ukrainian
гла́дкий
(suffix)
←
Ukrainian
-ість
(suffix)