Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
Ewigkeit
←
German
ewig
(suffix)
←
German
keit
(suffix)
→
German
Ewigkeitskosten
(compound)
→
German Low German
Eiwigkeit
(cognate)
→
East Franconian
Eiwigkeit
(cognate)