Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
citrono
←
German
Zitrone
(derived)
←
English
citron
(derived)
←
Esperanto
citrono
(derived)
←
French
citron
(derived)
←
Russian
цитро́н
(derived)