Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
жорстокий
←
Belarusian
жо́рсткі
(cognate)
←
Russian
жесто́кий
(cognate)
←
Ukrainian
жорстки́й
(mention)