Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tamil
இன்று
←
Proto-Dravidian
*ī
(derived)
←
Tamil
இ
(link)
→
Malayalam
ഇന്ന്
(cognate)