Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Malayalam
ആട്
←
Tamil
ஆடு
(cognate)
→
Kannada
ಆಡು
(cognate)
→
Tamil
ஆடு
(cognate)