Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Vietnamese
o
←
Proto-Vietic
*ʔɔː
(inherited)
←
Portuguese
ó
(borrowed)
←
Vietnamese
cô
(link)
←
Vietnamese
trượng
(link)
←
Vietnamese
dượng
(link)
←
Vietnamese
ô
(link)
←
Vietnamese
ơ
(link)
→
Vietnamese
ô
(link)
→
Vietnamese
trượng
(link)