Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
diaeresis
←
Ancient Greek
δῐαίρεσῐς
(derived)
→
German
Diärese
(derived)
→
Spanish
diéresis
(derived)
→
Latin
diaeresin
(mention)