Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
oceano
←
German
Ozean
(borrowed)
←
English
ocean
(borrowed)
←
Spanish
océano
(borrowed)
←
French
océan
(borrowed)
←
Ancient Greek
Ὠκεανός
(derived)
←
Italian
oceano
(borrowed)
←
Latin
ōceanus
(derived)
←
Russian
океа́н
(borrowed)
→
Esperanto
Oceanio
(affix)