Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bengali
অগ্নি
←
Proto-Indo-Iranian
*Hagnis
(derived)
←
Proto-Indo-Aryan
*agní
(derived)
←
Proto-Indo-European
*h₁n̥gʷnis
(derived)
←
Sanskrit
अग्नि
(borrowed)
→
Bengali
আগুন
(doublet)
→
Bengali
আগ্নেয়গিরি
(compound)