Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
kam
←
Proto-Slavic
*kamo
(inherited)
←
Old Czech
kamo
(inherited)
→
Czech
kaj
(mention)
→
Czech
někam
(prefix)