Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
ek
←
Ancient Greek
ἐκ
(borrowed)
←
Ido
ex-
(mention)
←
Latin
ex
(borrowed)
→
Ido
ek-
(mention)
→
Ido
ekterigar
(confix)
→
Ido
ekirar
(prefix)