Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
espasa
←
Ancient Greek
σπάθη
(derived)
←
Latin
spatha
(inherited)
←
Old Occitan
espaza
(inherited)
←
Old Occitan
espada
(mention)
→
Catalan
espasa
(cognate)