Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Serbo-Croatian
trema
←
German
Trema
(borrowed)
←
French
tréma
(derived)
←
Ancient Greek
τρῆμα
(derived)
←
Latin
tremō
(derived)