Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
crak
→
English
craic
(derived)
→
English
crake
(inherited)
→
English
what's cracking
(derived)
→
English
craic killer
(derived)