Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
flok
←
Old English
flocc
(inherited)
←
Proto-Germanic
*flukkaz
(inherited)
→
English
flock
(inherited)
→
English
flock
(inherited)
→
Yola
vlock
(inherited)