Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
niespodziewany
←
Polish
nie
(prefix)
←
Polish
spodziewany
(prefix)
→
Polish
niespodziewanie
(suffix)
→
Ukrainian
несподіваний
(cognate)