Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Telugu
కళత్రము
←
Sanskrit
कलत्र
(borrowed)
←
Telugu
(suffix)
←
Telugu
ము
(suffix)
→
Tamil
களம்
(cognate)