Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Afrikaans
vyftien
←
Middle Dutch
vijftien
(inherited)
←
Proto-Germanic
*fimftehun
(inherited)
←
Dutch
vijftien
(inherited)
←
Old Dutch
[[*vīftēn]], [[*vīftien]]
(inherited)