Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle High German
lache
→
German
Lache
(inherited)
→
German
Lache
(inherited)
→
German
Lacke
(inherited)
→
Luxembourgish
Laach
(derived)
→
Polish
łacha
(derived)