Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
Χp̃es mæssa
←
Old English
Cristes mæsse
(mention)
←
Old English
Crist
(mention)
←
English
X
(mention)
←
Ancient Greek
Χ
(derived)
←
Ancient Greek
Χριστός
(mention)
→
English
Xmas
(inherited)