Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Kazakh ер
Proto-Turkic *ẹ̆dŋe-r (inherited)
Proto-Turkic *ēr (inherited)

Southern Altai эр (cognate)
Bashkir эйәр (cognate)
Kazakh Ерболат (compound)
Kazakh ерлік (suffix)
Kazakh Ербосын (compound)
Kazakh Ермұхамет (compound)
Kyrgyz ээр (cognate)
Tuvan эзер (cognate)