Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*ǵʰi-ḱe
→
Catalan
aquí
(derived)
→
Spanish
aquí
(derived)
→
French
y
(derived)
→
Occitan
aquí
(derived)
→
Romanian
aici
(derived)
→
Sardinian
i
(derived)