Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tibetan
གསུམ
←
Proto-Sino-Tibetan
*g-sum
(inherited)
→
Tibetan
གྲུ་གསུམ
(compound)
→
Tibetan
སུམ་ཅུ
(compound)
→
Garo
gittam
(cognate)
→
Jingpho
masum
(cognate)
→
Lashi
sóem
(cognate)
→
Burmese
သုံး
(cognate)
→
Zou
thum
(cognate)