Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Kurtop
ཁ
←
Tibetan
ཁ
(cognate)
←
Mandarin
-
(cognate)
←
Dzongkha
ཁ
(cognate)
←
Proto-Sino-Tibetan
*m/s-k(w)aj
(inherited)
←
Kurtop
ཀོ
(doublet)
←
Chinese
開
(mention)
→
Kurtop
ཀོ
(doublet)