Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Temascaltepec Nahuatl
koyotl
←
Proto-Nahuan
*koyootl
(inherited)
←
Classical Nahuatl
coyotl
(cognate)