Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
koto
←
German
Kot
(borrowed)
→
Esperanto
koti
(suffix)
→
Esperanto
kota
(affix)
→
Esperanto
kotanimulo
(affix)
→
Ido
fango
(cognate)