Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle Dutch
viertich
←
Proto-Germanic
*fedwōr tigiwiz
(inherited)
←
Old Dutch
*viertig
(inherited)
→
Afrikaans
veertig
(inherited)
→
Dutch
veertig
(inherited)