Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tamil
வனம்
←
Kannada
ವನ
(cognate)
←
Sanskrit
वन
(derived)
→
Malayalam
വനം
(cognate)
→
Tamil
வானம்
(cognate)