Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
тлушч
←
Belarusian
то́ўсты
(mention)
←
Polish
tłuszcz
(borrowed)
←
Russian
то́лща
(cognate)