Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Dutch
*thas
→
Afrikaans
das
(inherited)
→
Middle Dutch
das
(inherited)
→
West Frisian
das
(derived)
→
Dutch
das
(inherited)