Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Kannada
ಅರಸು
←
Proto-Dravidian
*aracan
(inherited)
←
Kannada
ರಾಜ
(doublet)
←
Sanskrit
राजन्
(derived)
←
Tamil
அரசன்
(cognate)
←
Telugu
అరుసు
(cognate)
→
Kannada
ಅರಮನೆ
(affix)