Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
Valdemar
←
Danish
Valdemar
(cognate)
←
German
Waldemar
(cognate)
←
Proto-Slavic
*Voldiměrъ
(derived)