Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Assamese
বৃদ্ধ
→
Assamese
বুঢ়া
(doublet)
→
Assamese
বুঢ়ী
(doublet)