Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Telugu
గట్టి
→
Tamil
கெட்டி
(cognate)
→
Telugu
గట్టిగా
(affix)
→
Telugu
గట్టితనము
(suffix)