Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
deptat
←
Polish
deptać
(borrowed)
←
Proto-Slavic
*dъpъtati
(derived)
←
Proto-Slavic
*tъpъtati
(mention)