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)