Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bengali
খীর
←
Proto-Indo-Iranian
*kšiHrám
(inherited)
←
Proto-Indo-Aryan
*kṣiHrám
(inherited)
←
Sanskrit
क्षीर
(inherited)
→
Assamese
খীৰ
(cognate)