Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*flukkōn-
→
English
flock
(derived)
→
Faroese
flóki
(inherited)
→
Icelandic
flóki
(inherited)