Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
Tscheche
←
Czech
Čech
(derived)
→
Danish
tjekke
(borrowed)
→
German
Tschechin
(suffix)
→
German
Tschechei
(mention)