Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tamil
அந்த
←
Proto-Dravidian
*a-
(derived)
←
Tamil
அ
(mention)
→
Tamil
அந்தண்டை
(compound)
→
Tamil
அந்தந்த
(mention)