Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
equestrianism
←
English
equestrian
(affix)
←
English
-ism
(affix)
←
Proto-Indo-European
*h₁eḱ-
(root)