Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Extremaduran
redi
←
Asturian
rede
(cognate)
←
Spanish
red
(cognate)
←
Italian
rete
(cognate)
←
Latin
rete
(inherited)
←
Occitan
ret
(cognate)
←
Portuguese
rede
(cognate)