Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Michoacán Nahuatl
xuchil
←
Proto-Nahuan
*šoočitl
(inherited)
←
Classical Nahuatl
xochitl
(cognate)
←
Tetelcingo Nahuatl
xuchi̱tl
(cognate)