Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
bigangan
←
Old English
begangan
(cognate)
←
Proto-Germanic
*biganganą
(inherited)
←
Old High German
bigangan
(cognate)
←
Old Saxon
bi-
(affix)
←
Old Saxon
gangan
(affix)
→
Old English
begangan
(cognate)