Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
батько
←
Belarusian
ба́цька
(cognate)
←
Russian
ба́тя
(affix)
←
Russian
-ко
(affix)
←
Ukrainian
ба́тько
(cognate)