Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
чорнило
←
Belarusian
чарні́ла
(cognate)
←
Czech
černidlo
(cognate)
←
Polish
czernidło
(cognate)
←
Russian
черни́ла
(cognate)