Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ido
ludar
←
Esperanto
ludi
(derived)
←
Latin
lūdere
(derived)
←
Latin
lūdō
(mention)
→
Ido
ludo
(affix)
→
Ido
ludilo
(affix)