Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*trepati
→
Polish
trzepać
(inherited)
→
Russian
трепать
(inherited)
→
Serbo-Croatian
treptati
(inherited)
→
Serbo-Croatian
трептати
(inherited)