Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
tisique
←
Latin
phthisicus
(mention)
→
French
phtisique
(inherited)
→
Middle French
ptisique
(derived)
→
Old Occitan
tesic
(derived)