Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
оптимізм
←
Belarusian
аптымі́зм
(cognate)
←
French
optimisme
(borrowed)
←
Polish
optymizm
(cognate)
←
Russian
оптими́зм
(cognate)