Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
felica
←
Esperanto
feliĉa
(derived)
←
Spanish
feliz
(derived)
←
Italian
felice
(derived)
←
Latin
felix
(derived)
→
Ido
feliceso
(suffix)
→
Ido
desfeliceso
(affix)