Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Occitan
fustet
←
Arabic
فُسْتَق
(borrowed(pro/roa-oca))
←
Arabic
فُسْتَق
(borrowed)
←
Old Occitan
(suffix)
←
Old Occitan
-et
(suffix)
→
Arabic
فستان
(mention)
→
Catalan
fustet
(inherited)
→
French
fustet
(derived)
→
Middle French
fustet
(borrowed)
→
Occitan
fustet
(inherited)
→
Old Catalan
fustet
(inherited)