Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
вдячність
←
Belarusian
удзя́чнасць
(cognate)
←
Polish
wdzięczność
(cognate)
←
Ukrainian
вдя́чний
(affix)
←
Ukrainian
-ість
(affix)