Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
vidvo
←
German
Witwe
(borrowed)
←
English
widow
(borrowed)
→
Esperanto
vidvino
(affix)
→
Esperanto
vidviĉo
(affix)