Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
вясёлка
←
Belarusian
вясёлы
(affix)
←
Belarusian
-ка
(affix)
←
Russian
весёлка
(cognate)
←
Ukrainian
весе́лка
(cognate)
→
Ukrainian
веселка
(cognate)