Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old High German
soum
→
German
Saum
(inherited)
→
German
Saum
(inherited)
→
Luxembourgish
Sam
(inherited)
→
Latvian
soma
(derived)