Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Central Franconian
Booch
←
Central Franconian
Buch
(link)
←
Central Franconian
Buch
(link)
←
Central Franconian
Biech
(link)
←
Central Franconian
Bööch
(link)
←
Old High German
buoh
(inherited)
←
Old High German
buohha
(inherited)
→
Central Franconian
Buch
(link)