Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Italian
ottuso
→
Ido
obtuza
(borrowed)
→
Italian
ottusità
(affix)
→
Italian
ottusamente
(suffix)
→
Italian
triangolo ottuso
(mention)