Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
дипломатія
←
Belarusian
дыплама́тыя
(cognate)
←
Polish
dyplomacja
(cognate)
←
Russian
диплома́тия
(cognate)