Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
Dröömer
←
Saterland Frisian
drööme
(affix)
←
Saterland Frisian
-er
(affix)
→
English
dreamer
(cognate)