Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
cau
←
Catalan
cavus
(mention)
←
Catalan
a cau d'orella
(link)
←
Catalan
cavar
(link)
←
Catalan
cavitat
(link)
←
Catalan
còncau
(link)
←
Catalan
excavar
(link)
←
Catalan
caure
(mention)
←
Proto-Indo-European
*ḱówHwos
(inherited)
←
Latin
cavum
(inherited)