Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Dutch
*wika
→
Afrikaans
week
(inherited)
→
Middle Dutch
weke
(inherited)
→
Limburgish
waek
(inherited)
→
Dutch
week
(inherited)