Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Hindi
पोका
←
Assamese
পোক
(cognate)
←
Bengali
পোকা
(cognate)
←
Proto-Indo-Aryan
*pokkas
(derived)
←
Sylheti
ꠙꠥꠇ
(cognate)
→
Assamese
পোক
(cognate)