Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old Saxon roggo
Proto-Germanic *ruggô (inherited)
Proto-West Germanic *roggō (inherited)

Old English ryge (cognate)
Old High German rocko (cognate)
Old Norse rugr (cognate)
Plautdietsch Rogg (inherited)