Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bengali
পোকা
→
Assamese
পোক
(cognate)
→
Bengali
কাঠিপোকা
(compound)
→
Hindi
पोका
(cognate)