Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tamil
நடு
←
Kannada
ನಡು
(cognate)
←
Malayalam
നടു
(cognate)
←
Telugu
నడుము
(cognate)
→
Tamil
நடுவு
(suffix)