Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
řeřicha
←
Proto-Slavic
*žeřuxa
(inherited)
←
Old Czech
žeřucha
(inherited)
→
Upper Sorbian
žerchej
(cognate)