Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
aŭtoro
←
German
Autor
(cognate)
←
English
author
(cognate)
←
French
auteur
(cognate)
←
Latin
auctor
(derived)
←
Polish
autor
(cognate)
→
Esperanto
aŭtoreco
(affix)
→
Ido
autoro
(borrowed)