Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
ook
←
Old English
āc
(inherited)
→
English
oak
(inherited)
→
Old English
ac
(link)
→
Middle English
oken
(affix)
→
Marshallese
uuk
(derived)
→
Scots
aik
(inherited)