Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Rapa Nui
ha'u
←
Proto-Polynesian
*faqu
(inherited)
←
Samoan
fau
(cognate)
←
Tongan
faʻu
(cognate)