Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
sklavo
←
German
Sklave
(borrowed)
←
English
slave
(borrowed)
←
Esperanto
slavo
(doublet)
←
French
esclave
(borrowed)
←
Italian
schiavo
(borrowed)
→
Esperanto
slavo
(doublet)
→
Esperanto
sklavigi
(affix)
→
Esperanto
sklaveco
(affix)
→
Esperanto
sklavino
(affix)