Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Classical Nahuatl
acoatl
←
Classical Nahuatl
atl
(compound)
←
Classical Nahuatl
coatl
(compound)
→
Central Huasteca Nahuatl
akoatl
(cognate)
→
Central Nahuatl
acoatl
(derived)