Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
swarten
←
Old English
sweartian
(inherited)
←
Proto-Germanic
*swartōną
(inherited)
←
Proto-West Germanic
*swartōn
(inherited)
→
English
swart
(inherited)