Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
beheader
←
English
behead
(suffix)
←
English
er
(suffix)
←
Middle English
hedere
(cognate)
←
Middle English
hevedare
(mention)