Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Rapa Nui
tahi
←
Hawaiian
kahi
(cognate)
←
Maori
tahi
(cognate)
←
Proto-Polynesian
*tasi
(inherited)