Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
schwierig
←
Middle High German
swiric
(inherited)
←
Middle High German
sweric
(mention)
←
Dutch
zwerig
(cognate)
→
German
Schwierigkeit
(suffix)
→
German
unschwierig
(prefix)