Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
wellen
←
Old English
wiellan
(inherited)
←
Proto-West Germanic
*wallijan
(inherited)
→
English
well
(inherited)
→
English
boil
(cognate)