Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Hindi
वचन
←
Proto-Indo-European
*wekʷ-
(root)
←
Sanskrit
वचन
(learned borrowing)
→
Hindi
बहुवचन
(compound)
→
Hindi
एकवचन
(compound)