Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old High German
buog
→
Old English
bog
(cognate)
→
German
Bug
(inherited)
→
Luxembourgish
Buch
(inherited)
→
Luxembourgish
Bou
(inherited)
→
Old Norse
bógr
(cognate)