Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
buggian
←
Old English
byċġan
(cognate)
←
Proto-Germanic
*bugjaną
(inherited)
←
Proto-West Germanic
*buggjan
(inherited)
→
English
buy
(cognate)
→
Old English
bycgan
(cognate)
→
Old Norse
byggja
(cognate)