Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Dutch
*reganbogo
→
Afrikaans
reënboog
(inherited)
→
Old English
regnboga
(cognate)
→
Dutch
regenboog
(inherited)