Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
Adelger
←
English
Alger
(cognate)
←
English
Elgar
(mention)
←
Old High German
adal
(derived)
←
Old High German
ger
(mention)