Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bengali
কেদারা
←
Bengali
চেয়ার
(doublet)
←
Ancient Greek
καθέδρα
(derived)
←
Latin
cathedra
(derived)
←
Portuguese
cadeira
(borrowed)
←
Old Portuguese
cadeira
(derived)
→
Bengali
চেয়ার
(doublet)