Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European *h₁eys-

→ English oestrus (derived)
→ Ancient Greek οἶστρος (derived)
→ Ancient Greek οἰωνός (cognate)
→ Latin ira (derived)
→ Dutch IJssel (derived)