Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Dutch
belgan
←
Proto-Germanic
*belganą
(inherited)
←
Proto-West Germanic
*belgan
(inherited)
→
Middle Dutch
belgen
(inherited)
→
Dutch
belgen
(inherited)
→
Old Dutch
irbelgan
(prefix)