Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
solena
←
English
solemn
(borrowed)
←
Esperanto
solena
(borrowed)
←
Spanish
solemne
(borrowed)
←
French
solennel
(borrowed)
←
Italian
solenne
(borrowed)
→
Ido
solene
(suffix)