Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Telugu మెదడు
← Proto-Dravidian *metVẓ (inherited)
← Kannada ಮೆದುಳ್ (cognate)
← Kannada ಮಿದುಳ್ (mention)
← Tamil மிதழ் (cognate)

→ Tamil மிதழ் (cognate)
→ Telugu చిన్నమెదడు (compound)
→ Telugu పెద్దమెదడు (compound)