Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*hrōfą
→
English
roof
(inherited)
→
Old English
hrof
(inherited)
→
Middle English
rof
(derived)
→
Faroese
rógv
(inherited)
→
Dutch
roef
(inherited)
→
Polish
rufa
(derived)