Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Pipil
kuketzpal
←
Proto-Nahuan
*kwəts-
(derived)
←
Classical Nahuatl
cuetzpalin
(cognate)
←
Pipil
kū-
(mention)