Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Sardinian
pira
←
Spanish
pera
(cognate)
←
French
poire
(cognate)
←
Italian
pera
(cognate)
←
Latin
pirum
(inherited)