Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
szlag
←
German
Schlag
(borrowed)
←
Proto-Germanic
*slagiz
(derived)
←
Middle High German
slac
(derived)
←
Old High German
slag
(derived)