Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Occitan
batalha
←
Latin
battuālia
(mention)
←
Latin
battuō
(inherited)
→
Catalan
batalla
(inherited)
→
Spanish
batalla
(derived)
→
Occitan
batalha
(inherited)