Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
tu
←
Proto-Indo-European
*túh₂
(inherited)
←
Proto-Italic
*tū
(inherited)
←
Latin
tū
(inherited)
←
Old Occitan
tu
(inherited)
→
Catalan
te
(link)
→
Sardinian
tue
(cognate)