Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Mecayapan Nahuatl
-ni
←
Classical Nahuatl
-ni
(cognate)
→
Mecayapan Nahuatl
tzoncalhuihuitani
(affix)