Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Assamese
দুগ্ধ
←
Proto-Indo-Iranian
*dʰugdʰás
(inherited)
←
Proto-Indo-Aryan
*dugdʰás
(inherited)
←
Proto-Indo-European
(inherited)
←
Proto-Indo-European
*dʰewgʰ-
(mention)
←
Sanskrit
दुग्ध
(inherited)
→
Assamese
দুধ
(doublet)