Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bengali
পুঞ্জ
←
Sanskrit
पुञ्जक
(derived)
→
Bengali
দ্বীপপুঞ্জ
(compound)