Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
estiu
←
Spanish
estío
(cognate)
←
French
été
(cognate)
←
Italian
estate
(cognate)
←
Italian
estivo
(mention)
←
Latin
aestivus
(inherited)
←
Occitan
estiu
(cognate)
←
Old Occitan
estiu
(inherited)
→
Catalan
estiuar
(affix)
→
Catalan
estiuejar
(affix)
→
Spanish
estío
(cognate)
→
Portuguese
estio
(cognate)