Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Portuguese
tu
←
Proto-Indo-European
*túh₂
(inherited)
←
Latin
tū
(inherited)
→
Galician
ti
(inherited)
→
Portuguese
tu
(inherited)