Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
'Are'are
rua
←
Proto-Austronesian
*duSa
(inherited)
←
Proto-Central-Eastern Malayo-Polynesian
*dua
(derived)
←
Proto-Oceanic
*rua
(inherited)
←
Proto-Malayo-Polynesian
*duha
(inherited)
←
Proto-Eastern Malayo-Polynesian
*dua
(inherited)