Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Mang
hɔk⁷
←
Proto-Mon-Khmer
*suk
(inherited)
←
Proto-Mon-Khmer
*suuk
(mention)
←
Proto-Mon-Khmer
*suək
(mention)
←
Proto-Mon-Khmer
*sək
(mention)