Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
oli
←
Ancient Greek
ἔλαιον
(derived)
←
Latin
oleum
(derived)
→
Catalan
olier
(affix)
→
Catalan
allioli
(compound)
→
Spanish
alioli
(mention)
→
Occitan
òli
(cognate)