Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Telugu
తాత
←
Proto-Dravidian
*tātt-a
(inherited)
←
Kannada
ತಾತ
(cognate)
←
Malayalam
താതൻ
(cognate)
←
Tamil
தாத்தா
(cognate)
←
Tulu
ತಾತೆ
(cognate)
→
Telugu
తాతమ్మ
(compound)
→
Telugu
ముత్తాత
(compound)