Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
tondro
←
German
Donner
(borrowed)
←
English
thunder
(borrowed)
←
Esperanto
tondro
(borrowed)
←
French
tonnerre
(borrowed)
←
Italian
tuono
(borrowed)
→
Ido
tondrar
(suffix)