Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
ideo
←
Latin
idea
(derived)
→
Esperanto
ideologo
(suffix)
→
Esperanto
samideano
(affix)
→
Esperanto
idearo
(suffix)
→
Ido
ideo
(derived)