Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
spegulo
←
German
Spiegel
(mention)
→
Esperanto
speguli
(suffix)
→
Esperanto
retrospegulo
(affix)
→
Ido
spegulo
(derived)