Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Dutch
soe
←
Proto-Germanic
*sō
(inherited)
←
Old Dutch
*suo
(inherited)
→
Middle Dutch
so
(mention)
→
Middle Dutch
si
(alter)