Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Kannada
ಒಂದು
←
Proto-Dravidian
*onṯu
(inherited)
←
Tamil
ஒன்று
(cognate)
→
Kolami
ఒక్కొంద్
(cognate)
→
Tamil
ஒன்று
(cognate)