Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
segur
←
Spanish
seguro
(cognate)
←
French
sure
(cognate)
←
Latin
sēcūrus
(inherited)
←
Occitan
segur
(cognate)
→
Catalan
segurament
(suffix)
→
Friulian
sigûr
(cognate)