Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tangam
laʔki
←
Proto-Sino-Tibetan
*lak ~ C-jak
(derived)
←
Proto-Tani
*lak-ke
(inherited)