Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
dar-
←
Old High German
dār
(mention)
→
English
there
(mention)
→
German
darüber
(prefix)
→
German
darunter
(prefix)
→
German
daraus
(prefix)
→
German
immerdar
(compound)
→
German
darob
(prefix)
→
Luxembourgish
duer-
(cognate)