Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
retro-
←
Ido
retro-
(borrowed)
→
Esperanto
retroiri
(affix)
→
Esperanto
retrospegulo
(affix)