Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Sostak
←
Belarusian
Шостак
(derived)
←
Slovak
Šosták
(derived)
←
Proto-Slavic
*šestъ
(derived)
←
Ukrainian
Шостак
(derived)