Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
lok
→
English
lock
(inherited)
→
English
lock
(inherited)
→
English
padlock
(mention)
→
Old English
loc
(link)
→
Irish
loc
(derived)