Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Dravidian
*patt
→
Old Kannada
ಪತ್ತು
(inherited)
→
Kannada
ಹತ್ತು
(inherited)