Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Atong (India)
taw·
←
Proto-Sino-Tibetan
*daw
(inherited)
←
Proto-Bodo-Garo
*tao²
(inherited)
→
Kokborok
tok
(cognate)