Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
kastano
←
German
Kastanie
(borrowed)
←
Spanish
castaña
(derived)
←
Ancient Greek
καστάνεια
(derived)
←
Italian
castagna
(derived)
←
Latin
castanea
(derived)
←
Russian
каштан
(derived)