Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
caure
←
Proto-Indo-European
*ḱh₂d-
(derived)
←
Proto-Italic
*kadō
(inherited)
←
Latin
cadere
(inherited)
←
Latin
cadō
(mention)
←
Latin
*cadēre
(mention)
←
Occitan
caire
(cognate)
←
Occitan
càser
(mention)
←
Old Occitan
cazer
(mention)
←
Old Occitan
chazer
(mention)
←
Old Catalan
caér
(mention)
→
Catalan
cau
(mention)
→
Catalan
caiguda
(mention)
→
Catalan
caigut
(mention)
→
Catalan
escaure
(prefix)
→
Catalan
recaure
(affix)
→
French
choir
(cognate)
→
Occitan
caire
(cognate)