Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Tamil கண்
← Proto-Dravidian *kaṇ (inherited)
← Kannada ಕಣ್ಣು (cognate)
← Malayalam കണ്ണ് (cognate)
← Telugu కన్ను (cognate)

→ Kolami కన్ (cognate)
→ Kannada ಕಣ್ಣು (cognate)
→ Malayalam കണ്ണ് (cognate)
→ Tamil கணவன் (mention)
→ Tamil கண்ணீர் (compound)
→ Tamil இன்கண் (compound)
→ Tamil கணு (mention)
→ Tamil கண்ணோட்டம் (affix)
→ Telugu కన్ను (cognate)