Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
teu
←
Catalan
meu
(mention)
←
Catalan
ton
(mention)
←
Proto-Italic
*towos
(inherited)
←
Latin
tuus
(inherited)
←
Latin
tuus
(inherited)
←
Old Catalan
teu
(inherited)
←
Old Catalan
tua
(mention)
→
Catalan
ton
(mention)