Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
de
←
Latin
dē
(inherited)
←
Occitan
d'
(alter)
←
Occitan
(alter)
←
Occitan
before a vowel
(alter)
→
Occitan
dejunar
(prefix)
→
Occitan
daissar
(mention)
→
Occitan
defòra
(prefix)