Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
spere-hed
←
Middle English
spere
(affix)
←
Middle English
heed
(affix)
→
English
spearhead
(inherited)
→
Middle English
heed
(link)
→
Middle English
spere
(link)