Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
krásný
←
Proto-Slavic
*krasьnъ
(inherited)
→
Czech
překrásný
(prefix)
→
Lower Sorbian
kšasny
(cognate)