Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Greenlandic
takusarpaa
←
Proto-Eskimo
*takuv-
(derived)
←
Proto-Inuit
*taku-
(inherited)
←
Greenlandic
takku
(mention)
←
Greenlandic
takuaa
(mention)
→
Greenlandic
takuaa
(mention)