Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Dutch
zoemen
←
German
summen
(borrowed)
→
German
summen
(cognate)
→
Dutch
zoemer
(suffix)
→
Dutch
zoemsteen
(compound)