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

English churn (derived)
English kirna (inherited(en/fo))
Danish kærne (inherited)
Middle English cherne (inherited)
Finnish kirnu (derived)
Saterland Frisian Säddene (inherited)
Swedish kärna (inherited)