Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
birchen
←
Old English
birce
(inherited)
←
Middle English
birche
(mention)
←
Middle English
-en
(mention)
→
English
birchen
(inherited)
→
English
birken
(inherited)
→
Scots
birken
(mention)