Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
nigra
←
Esperanto
nigra
(borrowed)
←
Latin
niger
(derived)
→
Ido
nigreskar
(suffix)
→
Ido
nigrigar
(suffix)
→
Ido
nigratra
(suffix)