Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Bengali
উম
←
Middle Bengali
ওম
(doublet)
←
Prakrit
𑀉𑀫𑁆𑀳
(inherited)
←
Sanskrit
उष्मन्
(inherited)
→
Middle Bengali
ওম
(doublet)