Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
kontre
←
Esperanto
kontraŭ
(derived)
←
Spanish
contra
(derived)
←
French
contre
(derived)
←
Italian
contro
(derived)
←
Latin
contra
(derived)
→
Ido
kontrea
(suffix)
→
Ido
kontre-
(mention)
→
Ido
kontredicar
(prefix)
→
Ido
kontredico
(compound)