Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Plautdietsch
Ondank
←
Dutch
ondank
(cognate)
←
Plautdietsch
on
(prefix)
←
Plautdietsch
Dank
(prefix)
→
Dutch
ondank
(cognate)