Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
finster
←
Middle High German
vinster
(inherited)
←
Old High German
finstar
(inherited)
→
German
Finsternis
(affix)
→
German
stockfinster
(prefix)
→
Pennsylvania German
finschder
(cognate)