Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Pipil
kwilin
←
Proto-Uto-Aztecan
*kwira
(derived)
←
Classical Nahuatl
ocuilin
(cognate)
←
Pipil
-in
(affix)