Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
купальний
←
Belarusian
купа́льны
(cognate)
←
Russian
купа́льный
(cognate)
←
Ukrainian
купа́ти
(affix)
←
Ukrainian
-льний
(affix)