Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
Ludvík
←
German
Ludwig
(borrowed)
←
Old High German
Ludhuwīg
(derived)
←
Old High German
Hludwig
(mention)
←
Old High German
*Hlūtwīg
(mention)