Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Early Assamese
-অক
←
Proto-Indo-European
*kʷer-
(root)
←
Sanskrit
कृ
(inherited)
→
Assamese
-অক
(inherited)