Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Spanish
acá
←
Galician
acá
(cognate)
←
Latin
[[eccum]] [[hac]]
(inherited)
←
Portuguese
cá
(cognate)
←
Sicilian
cca
(cognate)
→
French
çà
(cognate)
→
Italian
qua
(cognate)
→
Portuguese
cá
(cognate)