Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Dutch
somersch
←
Middle Dutch
sōmer
(affix)
←
Middle Dutch
-sch
(affix)
→
Afrikaans
somers
(inherited)
→
Dutch
zomers
(inherited)