Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
-isk
→
Middle Dutch
vlaemsch
(affix)
→
West Frisian
-sk
(derived)
→
Dutch
Vlaams
(affix)