Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Mecayapan Nahuatl
a̱yo̱tzi̱n
←
Proto-Nahuan
*aayootl
(inherited)
←
Proto-Uto-Aztecan
*aya
(inherited)
←
Classical Nahuatl
āyōtl
(cognate)
←
Pipil
āyūtzin
(cognate)