Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
oblidar
←
Spanish
olvidar
(cognate)
←
Latin
oblīvīscor
(inherited)
←
Latin
oblītus
(mention)
←
Old Occitan
oblidar
(inherited)
→
Catalan
oblidable
(affix)
→
Catalan
oblidós
(suffix)
→
Catalan
oblidadís
(affix)
→
Occitan
doblidar
(cognate)