Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
forhelan
←
Old English
for
(prefix)
←
Old English
helan
(prefix)
←
Proto-Germanic
*frahelaną
(inherited)
←
Old High German
firhelan
(cognate)
←
Old Saxon
farhelan
(cognate)
→
English
forhele
(inherited)