Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Kurtop
ཏ
←
Tibetan
རྟ
(cognate)
←
Dzongkha
རྟ
(cognate)
←
Proto-Sino-Tibetan
*rta
(inherited)