Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bengali
রাত
←
Bengali
রাত্রি
(doublet)
←
Sanskrit
रात्रि
(inherited)
→
Bengali
রাত্রি
(doublet)
→
Sylheti
ꠞꠣꠁꠔ
(cognate)