Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Early Assamese
শাশু
←
Proto-Indo-Iranian
*swaćrúH
(inherited)
←
Proto-Indo-Aryan
*swaśrúH
(inherited)
←
Proto-Indo-European
*sweḱrúh₂
(inherited)
←
Sanskrit
श्वश्रू
(inherited)
→
Assamese
শাহু
(inherited)