Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tibetan
རྩ་བ
←
Proto-Sino-Tibetan
*r-sa
(inherited)
→
Tibetan
རྩ་བ་ནས
(compound)