Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
plunąć
←
Proto-Slavic
*pljunǫti
(inherited)
←
Old Polish
plunąć
(inherited)
→
Polish
splunąć
(prefix)